Silver-plated Alloy copper material threaded spot welded stud.
Welding studs refers to the method of welding metal studs or other similar metal parts (bolts, nails, etc.) to the workpiece (usually plate) is called stud welding, and the stud used for welding here is called welding Studs.
Stud welding is a method in which one end of a stud is in contact with the surface of a plate (or pipe), and the arc is energized. After the contact surface is melted, a certain pressure is applied to the stud to complete the welding. Cylindrical head welding nails for arc stud welding are suitable for high-rise steel frame buildings, industrial plant buildings, highways, railways, bridges, towers, automobiles, energy, transportation facilities, airports, stations, power stations, pipeline supports, hoisting machinery and Other steel structures, etc. Stud welding is mainly composed of stud welding power source and welding gun.
Stud welding characteristics:
1. Very saving time and cost
All stud welding structures do not need drilling, punching, threading, riveting, screwing and finishing steps.
2. Continuously expand the application potential of structural design
In the stud welding, the welding process is short time, high current and small penetration. Therefore, it can be welded to very thin plates. For the use of ceramic ring drawn arc stud welding and short-cycle drawn arc stud welding, the plate thickness can be up to 1mm. The capacitance discharge drawn arc stud welding can reach 0.6mm, and the energy storage stud can reach 0.5mm.The work piece for stud welding must be welded from one side.
3.It can be welded in all positions, and can be welded to a restricted vertical partition with the help of an expander.Because it is welded in a short time and there is little deformation after welding, no trimming is required.and the welded structure does not require drilling, it will not cause leakage.
The stud welded joint can reach high strength, that is, the strength of the stud welded joint is greater than the strength of the stud itself.
After the plating or high-alloy plate is welded, there is no print on the back.
|Silver-plated Alloy copper material threaded spot welded stud
|Plastic bag+ Carbon box+ Plywood pallet, or customized
|TT 50% Deposit
Q1: How long is your delivery time?
A: We have large stock, 3 days for stock items,7-15days for production.
Q2: Do you provide samples? Is it free or need extra fees ?
A: Yes, we could offer free samples for the items in stock,just need to pay shipping cost.
Mold cost is necessary for customized item.


The building formwork is a temporary supporting structure. It is manufactured according to design requirements, so that the concrete structure and components are shaped according to the specified position and geometric size, maintaining its correct position, and bearing the self-weight of the building formwork and external loads acting on it. The purpose of the formwork project is to ensure the quality and safety of the concrete project, speed up the construction progress and reduce the cost of the project.
Made of standard-sized flat rectangular building material panels, used in the construction industry as a component of walls, ceilings or floors. Also refers to metal plates made by forging, rolling or casting


An intelligence-based optimization of the internal burnishing operation for surface roughness and vicker hardness
Can Xuan Khanh, Le Xuan Ba, Nguyen Truong An, Trinh Quang Hung, Nguyen Trung Thanh
Boosting machining quality is a prominent solution to save production costs for burnishing operations. In this work, a machining condition-based optimization has been performed to decrease surface roughness (SR) and enhance Vickers hardness (VH) of the minimum quantity lubrication-assisted burnishing operation (MQLABO). The burnishing factors are the spindle speed (S), depth of penetration (D), and the air pressure (P). The burnishing trails of the hardened material labeled 40X have been conducted on a milling machine. The adaptive neuro-based-fuzzy inference system (ANFIS) was used to construct the correlations between the process inputs and MQLABO responses. The non-dominated sorting genetic algorithm-II (NSGA-II) is utilized to determine the optimal parameters. The scientific outcomes revealed that the optimal values of the S, D, and P are 800 RPM, 0.09 mm, and 4.0 Bar, respectively. The SR is decreased by 53.8%, while the VH is enhanced by 3.1%, respectively, as coBarred to the initial values.
Performance assessment of gaussian process regression to predict the bond strength of FRP sheets to concrete
Thuy Anh Nguyen, Hai Bang Ly
A Gaussian process regression (GPR) model for predicting the bond strength of FRP-to-concrete is proposed in this study. Published single-lap shear test specimens are used to predict the bond strength of externally bonded FRP systems adhered to concrete prisms. A database of 150 experimental results collected from published works is used for the training and testing phases of the proposed GPR model, containing 6 input parameters (width of concrete prism, concrete compressive strength, FRP thickness, FRP width, FRP length, and FRP modulus of elasticity). The output parameter of the prediction problem is bond strength. Three statistical indicators, namely the coefficient of determination, root mean square error (RMSE), and mean absolute error (MAE) are used to evaluate the performance of the proposed GPR model over 500 simulations. The results of this study indicate that the GPR provides an efﬁcient alternative method for predicting the bond strength of FRP-to-concrete when compared to experimental results.
A vision-based excavator productivity analysis in Vietnam
Vu Quang Huy, Nguyen Hoang Tung
The process of determining the working parameters of reverse bucket excavators is mainly consulted through the Ministry of Construction norm. However, in the era of industrialization and modernization, machine and equipment are increasingly modern and innovative, making the determination of excavator productivity or parameters through the regulations in the old norms unsuitable. Furthermore, updating the norms through data collected in the field take tremendous amount of time and procedures as it is labor intensive. Therefore, this paper proposes a vision-based analysis in calculating excavator productivity using image processing applications and coding language to automatically determine the excavator productivity and bring results on the basis of analysing big data collected from validated construction sites. To be specific, this paper introduces a new method in calculating the excavator productivity by extracting crucial coefficients from hundred images of the excavators using an open-source software, then compare with the traditional method to identify and analyse the importance of this new method and the practical use it might bring to the construction industry.
Evaluation on the adoption of transportation e-marketplace in vietnam from the demand side’ viewpoint
Pham Xuan Dung, Hoang Huong Giang, Nguyen Thi Van Ha
Studying on transportation e-marketplaces (TEMs) has today received much concern because developing TEMs helps enterprises and their customers reduce operation costs and improve supply chain efficiency. This study evaluates the adoption of TEMs in Vietnam based on the demand side’s perspective, including the viewpoint of shippers and the Transport Service Providers (TSPs). While shippers and TSPs around the world are facing various issues related to transportation and logistics process in the competitive market, TEMs is a potential solution which can offer response to those challenges such as transaction cost reduction, better transport capability, inefficiency diminishment, … In Vietnam, TEMs is still a new concept with the limitation of usage, so that the number of researches on this topic is scarce. This study followed the quantitative research method via SPSS technique of data analysis to provide a brief view of TEMs adoption in Vietnam. These insights can make contribution to both research and practice in the future.
Fundamental frequencies of bidirectional functionally graded sandwich beams partially supported by foundation using different beam theories
Vu Thi An Ninh
Investigation on the influence of beam theory and partial foundation support on natural frequencies play an important role in design of structures. In this paper, fundamental frequencies of a bidirectional functionally graded sandwich (BFGSW) beam partially supported by an elastic foundation are evaluated using various beam theories. The core of the sandwich beam is homogeneous while its two face sheets are made from three distinct materials with material properties varying in both the length and thickness directions by power gradation laws. The finite element method is employed to derive equation of motion and to compute the frequencies of the beam. The effects of the material gradation, the foundation parameters and the span to height ratio on the frequencies are studied in detail and highlighted. The difference of the frequencies obtained by different beam theories is also examined and discussed. The numerical results of the paper are useful in designing BFGSW beams with desired fundamantal frequencies.
Application of self-produced artificial sand in the production of green mortar
Huynh Trong Phuoc, Lam Tri Khang, Pham Trong Binh, Phan Huy Phuong
Due to the large disposal of locally industrial wastes and the shortage of natural resources, turning industrial by-products into green artificial materials has been attracting many researchers in the world. Following this trend, this study evaluated the potential application of self-produced artificial sand (AS) in the production of green mortar. The AS was produced by the alkali-activated method using a mixture of 36.4% fly ash, 36.4% slag, 3.5% 10M NaOH solution, 11% Na2SiO3 solution, and 12.7% water. The mortar mixtures were designed based on the densified mixture design algorithm with the incorporation of the AS as the substitution of natural sand (NS) by 0 – 100 wt.% (interval of 20%). The engineering properties of the mortar samples in both fresh and hardened states were evaluated through the tests of workability, compressive strength (CS), water absorption (WA), and shrinkage/ expansion. The experimental results showed that the mortar sample incorporating 20% of AS to replace NS performed superior engineering properties in comparison to other samples. Further increasing the AS content generally caused a negative impact on the mortar’s performance. Increasing AS content beyond 20% systematically decreased the CS while both WA and expansion were increased noticeably. However, the properties of the green mortar produced for this study satisfied all of the requirements of the official Vietnamese standards. Thus, the research results further confirmed a great potential in producing green mortar using AS to either partially or fully replacement of NS. In addition, the use of AS greatly contributes to not only saving natural resources but also limiting the negative effects on the environment due to the exploitation and use of naturally sourced materials.
An experimental study on production of high strength non-shrink grout containing fly ash
Dang Thuy Chi
Cement-based grouts are widely used thanks to its outstanding features such as high workability, non-separation, non-bleeding, easy to fulfill small gaps with complex shapes. This paper descrcibes the first phase of a series of laboratory experiments that examined the ability of production of self - levelling mortar at the University of Transport and Communications. The Portland cement-based grout incorporated superplasticizer, fly ash, fine aggregate, water along with expansion agent to match as closed as possible the given high strength non-shrink grout. The experimental study focused on the performance of non-shrink grouts regarding the flowability, expansion and bleeding, strengths and drying shrinkage of the test grout mixtures. The high range water reducer (HRWR) at dosage of 1% by weight of cement was used as a flowability modifying chemical admixture to prevent water segregation and leads to an increase in compressive strength. The parameter tests consist of water-cement ratios, and fixed dosages of superplasticizer and expansive agent. To examine the flowability of grout mortars, the flow cone test was applied. The flow cone test result indicated that there were three proportional of grouts that can meet the requirement of fluidity. The compressive strength of specimens was tested according to ASTM C349-14. It was concluded that the compositions of grouts at a water-cement ratio of from 0.29 to 0.33 have compressive strengths greater than 60 MPa. The tested specimens using the expansive agent with the dosage recommended by the manufacturer meet the non-shrinkage requirement of a grout. The experimental results have demonstrated the ability of production of high strength non-shrink grouts.
Adherence to mask wearing on public transport during the COVID-19 pandemic and influential factors: the case of Hanoi
Huu Manh Tong, Anh Duong Do, Ngoc Anh Nguyen, Trung Duc Nguyen, Binh Minh Nguyen, Thi Huong Mai, Minh Hieu Nguyen
In response to little known about the use of face masks for public transport passengers in developing countries, this study investigates the prevalence of using masks and using masks correctly together with influential factors. Using 570-passenger data collected on the whole bus network from 7 September to 3 October 2020 in Hanoi, the authors found that 100% of users wore masks; however, about 11% failed to wear masks correctly. As regards factors, passengers who are old, rarely ride by bus, take heavy luggage, travel with other(s) were more likely to use masks incorrectly. Having a health issue encouraged the correct use of masks. Attitudes towards the COVID-19 were significant factors. The higher levels of agreement with the acute danger of COVID-19 and the risk of infection from the public were involved in the higher likelihood of the correct mask wearing. Notably, over time with no community transmission of the coronavirus, the likelihood of incorrect use of masks was more inclined to increase. To address the wrong utilization of masks on buses, the role of ticket conductors in reminding and asking users using masks incorrectly should be enhanced. Additionally, authorities should issue messages and implement campaigns to encourage citizens to wear in public spaces on a regular basis, particularly when the adherence reduces over the time without community transmission of COVID-19. Although not covering all aspects representing the incorrect mask wearing, this study is one the first research on the incorrect use of masks, thus extending the literature on how public transport users respond the effects of COVID-19.
Experimental study on the effect of concrete strength and corrosion level on bond between steel bar and concrete
Doan Dinh Thien Vuong, Nguyen Thanh Hung, Nguyen Dinh Hung
Corrosion of the steel reinforcement bars reduces the area of the steel bar and the bond stress between the steel bars and around concrete that decreases the capacity of concrete structures. In this study, the bond stress between steel bar with a diameter of 12mm and concrete was examined with the effect of different corrosion levels and different concrete grades. A steel bar was inserted in a concrete block with a size of 20×20×20cm. The compressive strength of concrete was 25.6MPa, 35.1MPa, and 44.1MPa. These specimens were soaked into solution NaCl 3.5% to accelerate the corrosion process with different corrosion levels in the length of 60mm. The pull-out test was conducted. Results showed that the bond strength of the corroded steel bar was higher than that predicted from CEB-FIP. Slip displacement and the range of slip displacement at the bond strength were reduced when the concrete compressive strength was increased. The rate of bond stress degradation occurred faster with the increment of the corrosion level when the concrete compressive strength was increased.


Cost To Build A Home Vs Buy It is typically cheaper to build an addition than to buy a new home that equals the space of your existing house plus an addition. At the very least, the closing costs involved with selling your old house and buying the new house would push this option over the top.
Construction laborers do the physical work involved in building a home. They remove debris from the construction site, unload building materials from delivery vehicles and operate construction machines, such as hand-operated cement mixers.
Construction and Building Inspectors. They are responsible for enforcing building regulations. While a house is being built they may visit the worksite and inspect the building. If there are building code violations they may suspend construction until issues are addressed. They ensure that the houses people live in are built properly.
Typical Construction Costs Fha Construction Loans Getting an FHA construction to permanent loan is a wonderful opportunity to build the home you want, with a lower down payment than most lenders require on a construction loan. In this article we’ll cover all the main points you need to understand if you’re looking to build a home from the ground up with an FHA construction to perm loan. · Most construction projects use a rate of 5%-10% from the total budget to determine contingency. typically that will cover any extra costs that might come up. However, it is often a bad idea to use a rate less than that, depending on the scale of the project.
Make the next step in your career on Monster jobs. browse 25794 construction jobs on our job search engine. Apply now for jobs hiring near you.. building/construction inspector cybercoders. Denver, CO Posted today Applied Saved. Load more jobs. Jobs.
Students from throughout eastern Iowa are helping build a house as part of workforce development program. Area builders hope the students.
Postgraduate Melanie seeks industry BIM survey respondents. With BIM (Building Information Modelling) playing a growing part in the construction process, Melanie Robinson is currently seeking industry professionals to take part in a survey on this information management system as part of her PhD at Edinburgh Napier University. The survey is taking.
From building hospitals to schools, Gilbane is making a real impact in people’s lives.. Whether you choose a career path with our fast-paced construction services team or a dynamic career in accounting and finance, sales and marketing, or technology- we offer you the following commitment.
All jobs in the construction sector are projected to have an increase in employment. Projected growth ranges from 1%, which is far below the average for all jobs (8.4%), for Drywall and Ceiling Tile Installers, to 105% for Solar Photovoltaic Installers.
One Time Close Loan · Just as the name implies, a one-time close construction loan has one closing date and one interest rate. Other types of loans have two or more closing date and rates associated with each of the home building process. With a one-time loan, the funds are.New Home Construction Loan Interest Rates Home loans: floating interest card rates w.e.f.10.08.2019. In case the construction of house is not completed, and a completion certificate is not submitted by borrowers within the stipulated period of 5 years from the date of first disbursement, interest rate structure for new loans.
Sustainable Construction Careers & Green Building Jobs Imagine green building jobs where. Request an Application Name: Email: How Did You Learn About Our Building Positions: Other I Don’tOn DancingRabbit.org A Search Engine Social Media Word of From Another Site Do You Want Our Email Newsletter Too?
Construction and building inspectors ensure that construction meets local and national building codes and ordinances, zoning regulations, and contract.
The Jim Vlock First Year Building Project began in 1967 as an annual opportunity for architecture students to participate in the design and construction of a project that has social impact. Recent.


Earthquake aftershocks as Green’s functions
A method is presented for modeling earthquake strong ground motion, which uses the aftershocks associated with a large earthquake as Green’s functions. A major earthquake, with a large rupture surface, is modeled by a collection of point sources distributed over the fault plane.
An instrumental earthquake magnitude scale
Comparison of the maximum amplitudes recorded at different epicentral distances by the torsion seismometers of the Southern California group makes it possible to rate earthquakes in this region in terms of a magnitude scale. The magnitude assigned is characteristic of the shock as a whole; it thus differs from the intensity, which varies from point to point of the affected area.
A constitutive law for rate of earthquake production and its application to earthquake clustering
Seismicity is modeled as a sequence of earthquake nucleation events in which the distribution of initial conditions over the population of nucleation sources and stressing history control the timing of earthquakes.
Ionospheric Anomaly after the 11 April, 2012, Mw =8.6 Indonesia’ Sumatra Earthquake Using Two-Dimensional Principal Component Analysis (2DPCA)
Two-dimensional Principal Component Analysis (2DPCA) and principal component analysis (PCA) were performed to determine two-dimensional ionospheric total electron content (TEC) anomaly after Indonesia’s Sumatra earthquake on 11 April, 2012 (UT) (Mw =8.6).
Variation of Earthquake Focal Depth in Parts of Oceanic Ridges
This study was conducted to evaluate the variation of earthquake focal depth in parts of Oceanic Ridges. The data set for this work were extracted from the International Seismological Centre (ISC), Pipers Lane, Thatcham, Berkshire, United Kingdom.
 Hartzell, S.H., 1978. Earthquake aftershocks as Green’s functions. Geophysical Research Letters, 5(1), pp.1-4.
 Richter, C.F., 1935. An instrumental earthquake magnitude scale. Bulletin of the seismological society of America, 25(1), pp.1-32.
 Dieterich, J., 1994. A constitutive law for rate of earthquake production and its application to earthquake clustering. Journal of Geophysical Research: Solid Earth, 99(B2), pp.2601-2618.
 Lin, J.-W. (2013) “Ionospheric Anomaly after the 11 April, 2012, Mw =8.6 Indonesia’ Sumatra Earthquake Using Two-Dimensional Principal Component Analysis (2DPCA)”, Journal of Scientific Research and Reports, 3(1), pp. 204-226. doi: 10.9734/JSRR/2014/5923.
 A. Abong, A. (2018) “Variation of Earthquake Focal Depth in Parts of Oceanic Ridges”, Asian Journal of Geological Research, 1(2), pp. 1-5. Available at: http://www.journalajoger.com/index.php/AJOGER/article/view/24704 (Accessed: 20March2020).


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Aggregate Plant Business Design. It is important to prove reserves for accurate valuation of a mining operation. The most accurate ROI calculations are based on comprehensive drill data throughout the breadth of the deposit.
Used Small Hammer Crusher. The used small hammer crusher is mainly used for crushing all kinds of feed material and wood. While crushing the feed materials, the adjustable size of feed material can reduce the energy consumption of animal chew on, on the other hand on the transport, storage, mixing and granulation is more convenient, efficient and better quality. while crushing the wood
PCH series ring hammer crusher is one of crush equipment,this impact rotor crusher with ring hammer,the feeding materials is crushed by impact effect from high speed revolution ring hammer with rotor,the crushed materials obtain kinetic energy from ring hammer at the same time,rush to the breaking plate with high speed,by the second break,then fell on the screen plate,materials is crushed
pc series limstone hammer crusher concrete breaker. decibel level of concrete crusher, 2 jan 2014 pc hammer mill crusher. was carried out with noise level predictions made both for while the ''base case'' proposed alignment model assumes a concrete road a crushing plant may be sound pressure capacity. level, laeq db. breaking up concrete.limestone hammer crusher wiki, 2014 yuhong limestone
Hamme crusher is called hammer mill. This series of crusher is the first choice of equipment for small sand production line with less investment and fast returns, change the form of grid bar. you can do a selective discharge.. This series of products has the features of small size, light weight, simple structure, easy operation and maintenance, large crushing ratio, small over crushing
Dec 24, 2018· Aggregate Crusher Machine Home Facebook. Indonesia portable concrete crusher mostly comes from portable crusher, which consists of portable jaw concrete crusher, portable cone concrete crusher, portable impact concrete crusher. These different portable concrete crushers can crush the slag cement, aggregate, limestone, granite into small pieces.
Alibaba offers 1,567 aggregate impact crusher products. About 87% of these are crusher, 1% are feed processing machines. A wide variety of aggregate impact crusher options are available to you, such as free samples.
Aug 27, 2010· I imported the 9"x12" Crusher from India, bought the twin cylinder diesel from someone on the Internet and built the rest and put in on my tandem trailer. It works really well. I use it for concrete and masonry crushing and have a small hammer on my JCB to break materials down to size for the crusher.
Working Principle Impact crusher is a crushing machine which uses the impact energy to break the material. When working, the rotor rotates at high speed driven by the motor, and when the material enters the crushing cavities, it will be broken into pieces with the plate hammer on the rotor and thrown on the impact liner to break
It can crush hard and soft ores into medium or small size, such as barite, limestone, gypsum, terrazzo, coal, slag, and up to 100 defferent kinds. Advantages and Features of limestone Hammer Mill: High capacity, high crushing ratio. Uniform particle size, simple structure. low investment, easy management and maintenance . Working Principle of
The primary jaw crushing machine, also named as PE jaw crusher machine, can crush all kinds of mineral ores or stones into particles with medium size. 2. PEX jaw crusher machine is suitable for secondary crushing of materials like limestone, iron ore, steel slag, phosphate ore, copper ore, silicon ore, quartz and ceramic, etc. 3. Small
Hammer Crusher The Hammer Crusher is widely used in the industry of mining, building materials, chemical industry, metallurgy and fodder. It can crush materials with middle or less than middle hardness into secondary or fine granularity, such as, barite, limestone, terrazzo, silica sandstone, coal, coke,
A hopper feeds the source material into the drum. The hammers gradually break up the material until it is small enough to pass through a screen with openings corresponding to the desired particle size. Hammer crusher is used for crushing raw materials such as limestone
Rock Hammer Crusher, Stone Breaking Machine, Stone Cutting Machine manufacturer / supplier in China, offering Haoyo Mining Mineral Gold Limestone Gravel Concrete Clinker Stone Rock Hammer Mill Crusher, Haoyo Hydraulic Knuckle Boom Marine Deck Crane, 5t/12.5m Straight Arm Crane Fixed Boom Ship Deck Marine Crane and so on.
PE jaw crusher is generally used as the primary crushing machine. Jaw crusher is designed to crush large size limestone into small size limestone with large crushing ration and high productivity. Cone crusher and impact crusher can finely crush the limestone for secondary crushing.
Aug 05, 2015· After initial blasting, breakers are used to break down aggregate that typically is not only too large to be hauled in dump trucks, but also too large for crushers that size rock to meet asphalt, drainage system, concrete and landscaping specifiions.
A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.
small size stone crushing plant . small crushing plant limestone into talk. limestone crushing small size. Stone crushing equipment is designed to achieve maximum productivity and high reduction
Aggregates 101 Summit Materials is a vertically integrated construction materials company and the first step of this integration is aggregates production. Summit Materials has both granite and limestone quarries across the United States and British Coluia, which supply internal and external customers with high quality aggregates from sand for baseball fields, to road base, to
Primary crusher is only for the breaking of large stones into pieces (this mean primary crusher is not for the aggregate size material.). Examples of primary crushers are jaw crusher; hammer mill crusher and gyratory crusher. After receiving primary crusher crush the material and produce a new fresh reduce size


Super-efficient heating and cooling17.4.2015
Derby Business Park is a group of three modern office buildings which was completed in 2012 in Espoo, north of the Finnish national road 1. Among others, the headquarters of Siemens and the construction company SRV are situated in the buildings.
The heating and cooling of the buildings, the cubic content of which spans 80,000 m3, are carried out with a super-efficient ground heat system which was designed and customised specifically for the special needs of the site.
The construction company SRV was designing their own headquarters and wished to discover the most efficient manner of heating and cooling the building, taking into consideration both the expenses and the environmental impact.
Best solution discovered in preliminary enquiry
At the end of 2009, Konsulttitoimisto Enersys Oy received a commission from SRV to conduct a preliminary study concerning heating and cooling options for SRV’s new project.
In the extensive preliminary study, different heating and cooling options were examined, and the usability of different natural sources of heat were also investigated. On the basis of the enquiry, the most affordable primary alternative, considering its life cycle impacts, proved to be a combined heating and cooling system based on heat pump technology, where the bedrock underneath the plot is utilised as a source and store of heat.
Oil burners were selected as a source of additional and auxiliary heat, as the need for additional heat was calculated to be very small and oil burners do not entail fixed charges.
Geothermal energy field – a production investment which will provide decades of utility
The single most expensive part of the system is the geothermal energy field comprised of the energy wells bored into the bedrock. It is advisable to size the system very carefully, as the field should be functional for at least 50 years. Oversizing a geothermal energy field may be more expensive in the investment stage, but undersizing may ruin the entire operational and financial foundation of the system.
A basic study was ordered from the Geological Survey of Finland (GTK) to investigate the properties of the bedrock, such as thermal conductivity and initial temperature, with the use of test holes.
The properties of the bedrock, the heating and cooling loads of the project, and the placement of the bore holes affect the long-term temperature development of the bedrock located in the sphere of the energy field’s influence. This temperature trend substantially affects the functionality and the operational economy of the system, which means that the system should always be designed with a controlled and predefined temperature development of the ground.
An example of a long-term temperature trend in the geothermal energy field which should be controlled and defined in the planning stage.
The significance of design
The metaphor of the weakest link is very true in heat pump systems. The main components of the system are:
Heat sources – HP plant – Load/distribution networks
The weakest of these dominates the functions of the entire system, and it has been proven that the difference in life cycle expenses between systems operating well or poorly can be higher than the initial investment. It is advisable to design the system as an entity in order to ensure the compatibility of different parts and avoid weak links.
It is also recommended to start designing the ground heat system in the early stages of project planning to take the functions of the system sensibly into account as a part of the overall planning of the construction project (the placement of the energy fields and equipment facilities and the phasing of construction can result in large savings).
Enersys was in charge of the overall design of the ground heat system and a design agency specialised in housing technology was in charge of planning the heating and cooling networks. Ensuring the compatibility of the systems required close cooperation between the ground heat and housing technology designers. The cooperation was extremely successful in this project, and the functionality of the networks has been deemed optimal.
In addition, it was decided to apply for a LEED certification (Leadership in Energy and Environmental Design) for the project to reduce the environmental impact during the use of the buildings. This also set special requirements for energy efficiency.
Resulting in a super-efficient, customised station
To minimize life cycle expenses and adhere to the strict energy and emission requirements, a completely customised heat pump system was designed for the needs of the project. The system includes the following parts and equipment:
- Customised primary heat pump units, power 2×250 kW for both heating and cooling, measured annual efficiency over 4.0
- Customised high-temperature unit for producing heated service water, heat source cooling, measured annual efficiency 3.5
- Separate water cooling unit, condensing to energy wells
- Energy wells 24×300 m, special collectors
Very strict performance characteristic requirements were drafted for the heat pump equipment in advance. On the basis of competitive bidding and careful evaluation, the Finnish manufacturer Pemco Oy was selected as the supplier. The performance characteristics of the equipment delivered by Pemco were measured in the implementation stage and they were discovered to even exceed the strict performance characteristic requirements.
Savings and profitability
The system was implemented in the autumn of 2012 and has been monitored since. When calculated using the market prices of electricity, the usage expenses of heating and cooling have totalled about EUR 40,000 per year (VAT 0%) during the first years of usage. The need for heating has been so far 1,700 MWH per year and the need for cooling connected to the system has been 700 MWH per year (some accounted by cooling the server space), whereupon the average price of the produced heat has been EUR 20 per MWH and that of the cooling
EUR 6 per MWH. Therefore, the system enables savings of EUR 2 million during 25 years (at current price levels), compared to a regular heating/cooling system in accordance with the image below (or EUR 5 million during a 50-year life cycle). As energy prices rise, the savings are increased as the rising prices do not affect the free energy of the ground heat sources; the share of free energy has been 3/4 for the heating alone.
With the help of a well designed and implemented ground heat system, it is possible to reach life cycle savings that are multiple compared to the initial investment.
The savings are based on the maximised energy efficiency and optimised production structure of the system. Most of the energy comes free of charge from the bedrock or as a side product of cooling. The image below presents the production distribution of heat in 2013–2014.
The end result was not accidental; instead, it was made possible by controlling the implementation chain of the entire system from the beginning to the end:
- The best system is selected as the premise for design through a neutral preliminary study
- The system is designed specifically for the special requirements of the project, eliminating weak links in the planning stage
- Detailed procurement definitions are drafted and the offers are evaluated with life cycle benefits (not the price) as the main criteria.
- The work of the contractors is sufficiently monitored and the compliance of the plans is ensured
- The end result is ensured with a thorough deployment and the users are trained for efficient usage.


- The National Investment and Infrastructure Fund (NIIF) and global transport infrastructure operator Roadis on Wednesday said they would jointly set up a platform to invest up to $2 billion of equity in road projects in India.
- After moving at a slow pace for over two years since its inception in December 2015, NIIF has tied up with several investors and is bidding for assets.
National Investment and Infrastructure Fund
- National Investment and Infrastructure Fund (NIIF) is India’s first sovereign wealth fund that was set up by the Government of India in February 2015.
- The objective behind creating this fund was to maximize economic impact mainly through infrastructure investment in commercially viable projects, both Greenfield and Brownfield.
- In Union Budget 2015-16, India’s Finance Minister, announced the creation of National Investment and Infrastructure Fund.
- It was proposed to be established as an Alternative Investment Fund to provide long tenor capital for infrastructure projects with an inflow of Rs. 20,000 crores from the Government of India.
- NIIF was approved in August 2015 by the Department of Economic Affairs. First meeting of its governing council was held in December 2015 further to which it was registered with SEBI as Category II Alternative Investment Fund.
- In June 2016, Finance Ministry announced that they appointed Mr. Sujoy Bose as Chief Executive Office of National Investment and Infrastructure Fund (NIIF) who was then the director at Infrastructure and Natural Resources, International Finance Corporation (IFC).


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Agganis Construction has been serving Saugus and the North Shore of Boston for over 25 years.
Agganis Construction has successfully completed construction projects of every size and complexity - On Time and On Budget. Our experienced crews can take care of any emergency or scheduled project. We will also advise you on the best approach to streamline the process.
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Water, Sewer, Drainage
Agganis Construction has the knowledge, equipment and man power to keep your pipes and sewers clear and running.
When you need municipal water, sewer, or drainage work done properly and efficiently, Agganis Construction, Inc. has been the one to call for more than 25 years. We've done extensive work in and around Saugus, so we're very familiar with problems that can come up and how best to handle them. Keep things running clear by having us service your sewer pipes and tackle any drainage issues. You can rely on our professional experience.
- Sewer & Water Pipe Construction
- Drainage and Grading
- Emergency Service
- Water Main Breaks
- Culvert and Drainage
Commercial Snow Plowing
Agganis Construction has provided dependable snow plowing for North Shore businesses for decades.
When the heavy snow hits and you find your business buried in the drifts, we're here to help you. With our top-of-the-line equipment, we'll come in and clear your parking lot and roadways in no time, making things safe for you, your employees, and your customers.
Check this off as one thing you won't have to worry about during the next snow storm!
- Snow Plowing
- Snow Removal
- Commercial Contracts
- Salting and Sanding
- Parking Lots and Entries


Behavior on and at approach to a traffic circle
Art. 47 and 48: Traffic square
- Drivers of motor vehicles and moped riders following the roadway are permitted to ride just before or in traffic squares other than on the right side of the roadway.
- Drivers are permitted to overtake on the right just before or at a traffic circle.
Drivers exiting a traffic square must give way to traffic, which continues to follow the square (e.g. turning passenger car, straight ahead moped rider). This may be arranged via signage the other way around.
How the right of way is arranged in the square is shown by the signs. Either the square has priority, or the access roads have priority. The signs will have to provide clarity.


Ecocem is the low CO2 cement. It is entirely recycled, and involves no mineral extraction. Its production generates virtually zero CO2 emissions and it delivers stronger, more durable and longer-last concrete.learn more »
Ecocem cement protects concrete structures from aggressive chemicals, delivering enhanced durability, and protects against thermal stresses during curing. It delivers stronger, denser and less permeable concrete, significantly enhancing the life-cycle of structures.learn more »
Ecocem cement gives concrete a much lighter and brighter colour, with a smoother and more uniform surface finish. It prevents the occurrence of efflorescence staining. It greatly increases the reflectance (albedo) of concrete. learn more »
Embodied CO2 is the quantity of CO2 emitted in the manufacture, supply and construction of a building or structure.
The Embodied CO2 in Irish construction projects accounts for between 10% and 15% of all CO2 emissions in Ireland.
Ecocem Cement can reduce the embodied CO2 of the average structure by 25% making it the Best Available Technology (BAT) for reducing embodied CO2 in the construction industry. find out more »
Sustainable development is “Development that meets the needs of the present without compromising the ability of future generations to meet their own needs,” from the World Commission on Environment and Development’s (the Brundtland Commission) report Our Common Future (Oxford: Oxford University Press, 1987).
For every tonne of Ecocem cement used, almost 900 kgs of CO2 are saved. Using Ecocem save 100,000’s of tonnes of CO2 annually in Ireland, helping tackle climate change leading to a more sustainable future for generations to come.
Ecocem cement is made from 100% recycled material. The use of Ecocem in Ireland is annually conserving 100,000’s tonnes of natural resources leading to a more sustainable future for generations to come
Replace traditional cement with Ecocem cement in the concrete and double the life of the structure. Doubling a structures life halves its environmental impact. find out more »
Bridges & Rail Projects
O’Connor Sutton Cronin Consulting Engineers
DW EcoCo have specified and recommend Ecocem in all its projects since it first came to our attention. Ecocem’s sustainability credentials are second to none in the construction industry. The use of the Ecocem significantly reduces the embodied CO2 of the project. The embodied CO2 or embodied energy is the emitted CO2 used in the manufacture supply and construction of the building. We’ve been involved in many large projects over the past few years and have won several competitions including the new dept of the environment office building in Wexford. The use of Ecocem on this project has saved 870 tonnes of CO2 which is the equivalent of taking about 200 cars off the road for a year. In addition the contractor has taken the extra step and used Ecocem’s carbon neutral concrete. Our client’s projects will benefit by being future proofed against any carbon taxation that is implemented to tackle climate change. Our sustainable design consultancy will continue to promote Ecocem as part of an overall sustainable strategy.
Integrated Sustainable Design Consultants
OCSC specify the use of GGBS for a number of reasons. Most of these are technical, some are architectural but we are always conscious of the environmental advantages of using Ecocem. One particular project that we are involved in is the NCC in Dublin, where over 6,000 tonnes of CO2 have been saved by the use of Ecocem on this project. On the CC site we also specified GGBS for technical reasons. Ecocem greatly reduces the effect of thermal cracking on large concrete pours. Ecocem also increases the resistance of concrete to the effects of sulphate and chloride attack and also increases the resistance of the concrete to the ingress of water. OCSC are happy to continue to specify GGBS on our projects in the future.


Natural resources are the foundation for our lives and lifestyles.
What would our lives be like without mining? Imagine a world without transportation such as jet planes or railroads, without communications such as cell phones or radar, without decorative items such as art or jewelry, without buildings such as skyscrapers or parking garages, without defense systems items such as missiles or submarines, without medical care items such as X-rays or surgical tools. We wouldn’t have any of these things without mining and minerals.
Limestone is a sedimentary rock composed mostly of the mineral calcite and comprising about 15% of the Earth's sedimentary crust. It is a basic building block of the construction industry (dimension stone) and the chief materials from which aggregate, cement, lime, and building stone are made. 71% of all crushed stone produced in the U.S. is either limestone or dolomite. As a source for lime, it is used to make paper, plastics, glass, paint, steel, cement, carpets, used in water treatment and purification plants, in the processing of various foods and household items (including medicines).
Rock Classification: sedimentary
Most limestone and dolomite are mined from open quarries, although in many areas economic and environmental considerations favor large-scale production by underground mining. The only carbonate materials not consistently recovered by surface or underground mining are shell products that are dredged from parts of U.S. coastal waterways.
Surface Limestone Mining:
The basic elements of surface mining are overburden removal, drilling, blasting and hauling ore to the crushing and processing plant. The selection of surface mining equipment varies with the particular requirements at each operation, including production capacity required, size and shape of the deposit, haul distances, estimated life of the operation, location relative to urban centers, and other social and economic factors. Other factors that must be considered in surface mining are the value of the products produced, location of competitive operations, and environmental and safety requirements associated with a particular deposit.
Underground Limestone Mining:
The basic operations in underground mining are drilling, blasting, loading and hauling, scaling, and roof bolting. Drilling equipment includes horizontal drills and down hole track drills. This equipment is generally quite different from that used for surface mining and results in much smaller blast holes and a lower volume of rock produced with each blast. Other equipment required in the underground mine includes powder loaders, which are used to blow ammonium nitrate–fuel oil mixtures into the blast holes. Scaling rigs, which are used to remove loose rocks from the ribs and roof of the mine, and roof-bolting equipment may also be required in an underground mine.
Most underground limestone and dolomite mines are room-and-pillar-type operations, and many recover rock from both headings and benches. It is not uncommon for an underground limestone mine to have several benches and an overall mine height up to 30 m. Whereas the thickness of the deposit being mined is directly controlled by the thickness of the rock and related roof conditions, it is not uncommon for an individual heading to be 7.5 to 10.5 m high, and in some instances to reach as high as 15 m. Rooms are generally 13.5 to 15 m wide, which, depending on the type of drilling jumbo used, normally can be mined with one- or two-drill setups.
A V-type drill pattern is commonly used to maximize the amount of rock produced with each shot to reduce the amount of unbroken rock in the shot face. Roof scaling is normally required as a safety measure; roof bolting may or may not be required, depending on roof conditions at the individual mine. Loading and hauling equipment may include standard 22 to 45 ton haul trucks and correspondingly sized front-end loaders. In some mines, the loading equipment may be more typical of underground hard-rock operations, and may include load-haul-dump units or other types of tramming equipment.


This is an excellent opportunity with a well-established & successful construction company based in Liverpool. Due to their success and rise in workload, they are looking to hire an experienced CDM Advisor / Principal Designer to work alongside their highly experienced and motivated team of construction professionals, delivering CDM / Health & Safety expertise to a range of construction clients, predominantly in the North-West of England.
- To deliver solid and professional CDM advice, Principal Designer support and Health & Safety expertise to a diverse construction client base.
- To create lasting relationships with clients and their partners through trusted integrity and a professional approach.
- To provide sound knowledge and knowhow to clients, giving them the ability to model themselves as market leaders with respect to their Health & Safety commitment, compliance and performance.
- NEBOSH Construction
- IMaPS status with the Association of Project Safety
- Previous consultancy experience
- A background in construction design and or construction management
- Have a smart and professional demeanour
- Full UK Driving License


Whether it’s assembling a lawsuit for defective work, building a contract between a general contractor and a subcontractor, or designing a construction claim to comply with the Miller Act, Johnstone Adams construction attorneys get the job done right. Our comprehensive resources, including a stable of expert consultants, combined with our abundant experience in this arena has positioned us as one of the leading legal services providers for the construction industry in Alabama, Mississippi, Florida, and along the I-10 Gulf Coast corridor.
From pre-project to close -out, our commercial construction experience includes liens, bonds, sureties, marine construction, contract drafting and review, contract disputes, architectural and engineering design claims, insured defense, financing, negotiation, arbitration and litigation, construction delays, liquidated damages, design defects, payment, submittals, change orders, and retainage issues.
Johnstone Adams construction clients include general contractors, subcontractors, suppliers, developers, owners, design professionals, construction lenders, offshore builders, and ship builders.
Snapshot of Strengths
From pre-project to close-out, our commercial construction transactional, negotiation and litigation experience includes:
- Marine construction
- Miller Act claims
- Contract drafting and review
- Contract disputes
- Architectural and engineering design claims
- Insured defense
- Construction delays
- Liquidated damages
- Retainage issues
Featured Client Stories
Fighting City Hall
Our client, a large commercial general contractor for whom we act as outside general counsel, was hired by a municipality in South Alabama to renovate the existing city hall building and to construct a new building adjacent to it. Design errors soon put the project behind schedule, and disputes arose between the city’s design professional and our client over responsibility for extra work and remedial work necessitated by the defective design documents.
Johnstone Adams approach and solution: Our client’s reasonable attempts to compromise were ignored by the city and its design professional. On behalf of our client, we retained an independent architect to review and interpret the construction documents so as to provide an opinion as to which party or parties was at fault and whether our client’s performance failed to comply with the drawings and specifications. The city refused to consider the architect’s opinions, decided instead that not only would it withhold progress payments to our client but also demanded liquidated damages. The project was half-finished and in peril.
Outcome: We counseled our client to continue working and see the job through; but, at the same time, we demanded arbitration and began building our client’s claim, which eventually grew to more than a million dollars. With the assistance of the architect that reviewed the design documents, as well as a scheduling and delay expert, we were able to position the case so that, with an arbitration date looming, it would be settled on terms generous to our client.
First the Hurricanes, Then the Storm
The years 2004 and 2005 brought several hurricanes, most notably Ivan and Katrina. The Gulf Coast was devastated. Johnstone Adams handled many construction matters in the years that followed these storms. We defended construction defect claims and also assisted our clients in rebuilding projects.
One very interesting case involved the rebuilding of Naval Air Station Pensacola. We represented a large mechanical contractor that was awarded an $8 million contract to provide mechanical and plumbing services in the construction of four new buildings. The project was built by a national defense contractor with an $80 million contract with the U.S. Navy.
The project was plagued with delays from the start that were not anyone’s fault. For example, during excavation for one building, an antique ship was discovered buried on the site, which stalled construction for months while archaeologists and historians decided on the best method to preserve the ancient relic while at the same time moving the project forward. There were other delays, however, that were the fault of one party or the other.
Johnstone Adams approach and solution: Eventually, the project was completed. The Navy was happy, but that feeling was not shared by anyone else involved. Even though the general contractor was paid in full by the Navy, without any assessment of liquidated damages, the GC nevertheless withheld retainage from our client, as well as most of the other subcontractors, and assessed liquidated damages for delay on top of that. Our client was owed about $1 million on its contract and was faced with a $2 million claim for liquidated damages. After negotiations proved unfruitful, we filed suit under the federal Miller Act in a Florida federal court and were soon joined by eight other subcontractors and suppliers who had also not been fully paid.
Outcome: After three years of litigation and several mediation proceedings, we settled our client’s claim for 90% of the amount it was owed and complete exculpation from liability for liquidated damages.
Johnstone Adams’ construction attorneys know the industry from foundation to completion, including the intricacies and challenges surrounding lien litigation, defective construction and how to handle claims for liquidated damages. Transactions, negotiations and litigation in this arena are often as complex as the entire building process. Our responsive and experienced attorneys have the necessary depth and breadth to provide you with the quality legal services you need without the high price tag and sluggish response associated with large law firms. Contact Johnstone Adams today to allow us to assist in resolving your construction issues.


Glass railings are modern interior and exterior elements. Glass railings, both interior and exterior, perform a protective function while not obscuring the view of space. Glass railing are commonly used on terraces or balconies as protective barriers.
Glass railings can be frameless, connected to the stairs with a metal or wooden post with a wooden or metal handrail. Such railings look aesthetically pleasing and elegant, moreover tempered or tempered – laminated glass guarantees optimal safety.
Prices from 200.00 eur/m.


The gas drilling industry has for decades claimed that hydraulic frackturing (fracking)¬†has never caused water pollution. But¬†The Wall Street Journal reports that some industry officials, government investigators,¬†and environmental critics are now pointing to poorly¬†cemented¬†wells as¬†the primary cause of aquifer water pollution in high-drilling regions of the U.S.. They point out that the¬†wells involved were improperly sealed with cement that allowed contaminants to migrate up the well bores¬†and contaminate aquifers.¬†However, some anti-drilling activists¬†claim that it is the¬†fracking that is causing the water pollution.¬†The drilling industry and some environmental groups are calling for much stronger cementing standards¬†as a cure for as high as 1 in 10 well failures (according to the Environmental Defense Fund).¬†¬†Federal investigators¬†say that a major cause of the Deepwater Horizon¬†well blowout in 2010 was caused by improper cementing of the well.
Cementing is an essential procedure in natural gas drilling procedures, in which steel pipes are threaded into deep bore holes and cement is forced¬† around the pipe,¬†ideally preventing the¬†frack gas,¬†waste water,¬†or natural or man-made chemicals from moving between the case and exposed rock. A poorly cemented well can¬†create a path for contaminants to migrate upward and leech into shallow porous rock aquifers¬†that hold drinking water.¬†A U.S. Energy Department committee in¬†a report last August called for drill companies to run tests on every well to identify inadequate cementing. It also called for more inspections to confirm that operators have promptly repaired defective cementing jobs.
An invesitgation last by the Pennsylvania DEP of the Bradford drinking-water contamination¬†near a drill site concluded that the driller, Chesapeake Energy Company, failed to cement its wells adequately, causing gas to leak from the pipes¬†and contaminate¬†groundwater.¬†¬†The company paid $900,000 in fines and said it plans to use three interlocking pipes in its drilling rather than the standard two.


The Acorus Northern team have secured two recent Class Q approvals for modern design steel portal framed buildings in West Yorkshire.
16th January, 2019 by Acorus
The Acorus Northern team have secured two recent Class Q approvals for modern design steel portal framed buildings in West Yorkshire; Kirklees Council and Leeds City Council; both applications were approved subject to conditions requiring the submission of Phase 1 contamination reports.
For further advice on planning matters contact:
Anthony Atkinson MRICS FAAV, Director
Class Q - This is the permitted development of an agricultural building to residential use. There are criteria that apply i.e. the building must have been use solely for agricultural use on or before 20th March 2013; the dimensions of the building must not change; there must not be excessive rebuilding to enable the building to be converted into a dwelling. There are also restrictions on the number and size of dwellings the building can be converted to.
For more details refer to the following Class Q information sheet.


Our team of professionals formulate and finds working chemical solutions for wastewater treatment, swimming pools, potable water and more.
We are a trusted chemical supplier in South Africa and across the globe.
SA CHEMICALS manufactures chemical products that are tested and approved by the industry experts.
We are a company that formulate, suply and manufacture speciality chemicals for waste watertreatment, swimming pools and potable water around the globe.
We are a 100% black owned company which was found and registered in 2017. Company that uses the latest water and waste water treatment technology
Innovative solutions for water and wastewater: We provide a range of process technologies and solutions to suit the applications ranging from potable water, sewage water, re-use water, wash water, damns water and swimming pools.
We are a registerd company number 2017/667621/07 and a LEVEL ONE BEE Contributor.
We offer various chemial solutions for different projects. Here are some of the projects and chemicals we work on.
We are always ready to hear from you.


The complex consists of fourteen backup columns at the height of: 2600 mm -3 pieces, 2300 mm-1 piece, 2000 mm-1 piece, 1400 mm-3 piece, 1100 mm- 4 piece, 450 mm -2 pieces.The complex includes swedish wall, three pull-up bars, multi-width parallel bars, multi-height parallel bars, climb-down bars and inclined parallel bars with bench. Distance between multi-width parallel bars- 1208mm at one end and 608mm- at another end, lenght of bars- 1790mm, bar diameter 42mm. Inclined parallel bar height difference- 966mm, lenght 1790mm, diameter 42mm. Multi-height parallel bar height difference -300mm, lenght- 1790mm, diameter- 42mm. Swedish wall section lenght 2067mm, width 1200mm, bar diameter- 34mm. Crossbar lenght: 2 pieces- 500mm, 3 pieces- 1200mm, diameter 34mm. All bars and sections are fixed to backup columns by means of collars. Weight – 453.50 kg.
- Dimensions (mm): 2932X5212


MORE THAN 300 UNITS
FROM CRIMEA TO SAKHALIN
Impossible is possible
Today, special attention is paid to strengthening the country's defense capability, comprehensive support of the Armed Forces of the Russian Federation, full-scale construction of new military camps and their arrangement are being carried out. Awning-mobile complexes were previously developed according to the Technical Design Assignment of the Ministry of Defense of the Russian Federation for servicing military machinery and equipment. They have a single-span (without internal supports), prefabricated structure with bolted connections, which is absolutely necessary for military equipment. Mobility is expressed in the possibility of repeated dismantling and installation of the structure without reducing its strength and functionality. The metal frame is covered with a two-layer awning fabric, with the formation of an air gap, inside which a layer of insulation is additionally laid. The used PVC fabric of high strength withstands sudden temperature changes, is frost-resistant and durable, withstands the temperature range of -60°C to +70°C. A prerequisite for the coating material of the awning-mobile shelter (AMS) is its resistance to gasoline and oils. Welding of fabric strips is carried out using HFC, which improves the strength and tightness of the welds. The tension of the AMS canvases is carried out by tension beams.
The steel frame is a metal structure made of shaped pipes of various cross-sections (GOST 23118-99, SNiP II-23-81), which are connected by longitudinal beams and braces. Structural load-bearing members are equipped with additional fixation elements, transverse frames, horizontal and vertical braces, which provide spatial rigidity, frame stability and uniform load distribution throughout the structure.
To protect against corrosion, the structure is sandblasted before painting. This method of processing allows degreasing and matting the surface in a short time. Then the frame is covered with two layers of paint. All products are accepted for compliance with the requirements of TU, GOST and SNiP, as well as technical specifications and other conditions specified in the technical documentation. Reinforced metal frame, reliable fastening of the awning cover allows it to withstand any wind and snow loads. The service life of such complexes is more than 25 years.
Awning-mobile shelters are easy to assemble. Their installation is carried out in the shortest possible time with minimal involvement of financial and labor resources. The first to be erected are arches with connecting elements and braces. The structure itself is attached to a pre-prepared foundation using foundation bolts. A prerequisite for installation is the presence of a flat platform for the installation of waterproofing. After the installation of the first spans of the metal frame, the installation of internal awning canvases, thermal insulation and external canvases begins.
Lighting, ventilation, power supply, fire extinguishing system
Application of advertising and illustrations on the awning: screen printing, full-color printing, combined type of advertising.
Smart hangar is a system that includes sensors, control elements and actuators.
The textile façade is a mesh fabric with a polyester backing coated with PVC.


How is LEED Developed?
The LEED Rating System was created to transform the building environment to sustainability by providing the building industry with consistent, credible standards for what constitutes a green building. The rating system is developed and continuously refined via open, consensus-based process that has made LEED the green building standard of choice for Federal agencies and state and local governments nationwide.
What is LEED Certification?
To earn certification, a building project must meet certain prerequisites and performance benchmarks (“credits”) within each category. Projects are awarded Certified, Silver, Gold and Platinum certification depending on the number of credits they achieve. This comprehensive approach is the reason LEED-certified buildings have reduced operating cost, healthier and more productive occupants, and conserve our natural resources.
LEED certification provides independent, third party verification that a building project meets the highest performance standards. The LEED plaque is recognized nationwide as proof that a building is environmentally responsible, profitable, and a healthier place to live or work.
LEED- Certified Building Criteria
- are leading the transformation of the building environment
- are built as designed and perform as expected
- have lower operating cost and increased asset value
- are healthy and comfortable for their occupants
- reduce waste sent to landfills
- conserve energy and water
- reduce harmful greenhouse gas emissions
- qualify for tax rebates, zoning allowances, and other incentives, in hundreds of cities
- demonstrate an owner’s commitment to environmental stewardship and social responsibility
List of incentives: http://www.usgbc.org/DisplayPage.aspx?CMSPageID=64&
LEED for Homes related to Domestic Hot Water
The US Green Building Council (USGBC) has LEED certification for new homes (LEED-H). Domestic hot water is addressed in the Energy and Atmosphere portion of LEED certification. Two paths are provided to accumulate credits for certification; Credit 1 calls for Energy Star products to be used, while credit 2 through 7.2 is the alternate path. Tankless instantaneous hot water earns two points in Credit 7.2 if the energy factor is equal to or exceeds 0.99%. LEED provides link to help readers choose products with required energy factors. Eemax Electric Tankless Water Heaters is the only tankless heater manufaturer listed.
Sustainable Practices for LEED Homes
- The efficient use of energy resources;
- The efficient use of water resources;
- The efficient use of building construction resources (i.e. through improved design, material selection and utilization, and construction practices)
- The efficient use of land resources, and
- Enhanced indoor environmental quality to safeguard the health of the homes occupants
LEED Performance Levels Minimum number of LEED for Homes Point Required
How do I participate in LEED for Homes?
An application form in the LEED for Homes Pilot is available a www.usgbc.org/leed/homes. This web site also offers additional information on green home building programs that offer training and educational information.
What defines a LEED Home?
Over half the energy use in a home is for space heating, space cooling and domestic water heating. An Energy Star qualified home is both designed and field tested to use 30 percent less of these end uses than a comparable home built to Modern Energy Code.
Credit 7: Water Heating
Intent: Optimizes energy performance of water heating system
- Design and install energy-efficient water distribution system; select one measure
- Structure plumbing system; including a circulation loop that is within 10 feet of every fixture, and has a demand controller circulation pump. Branch lines run from the loop to each fixture and are no longer than 10 feet, and a maximum of ½” in diameter. All hot water piping shall have R4 insulation (3 Points- includes 2 Points for water efficiency benefit of 10 percent in door water savings)
- note: Electric Tankless compact size and 99% efficiency complies
- Central manifold distribution system, including a trunk line from the heater to central manifold. Branch lines run from manifold to each fixture and are no longer 10 feet, and a maximum of ½” diameter. All hot water piping shall have R4 insulation (2 Points- includes 1 Point from water efficiency benefit of 5 percent in door water savings)
- Water heater is located within 20 feet of plumbing to all fixtures. Branch lines run from central header to each fixture and are a maximum of ½” diameter. All hot water piping shall have R4 insulation. (2 Point- includes 1 Point for water efficiency benefit of 5 percent indoor water savings)
Note: About 10 to 15% of energy used in hot water systems are from distribution loses. Distribution loses can be greatly reduced by ensuring that all hot water end-uses are located with in 20 feet of the water heater
Solution: Eemax Electric Tankless Water Heaters. Compact size and no venting allows the tankless electric heater to be installed practically anywhere
- Design and install energy-efficient water heating equipment; select one measure
LEED for New Construction/Major Commercial Renovations
LEED for new construction/major commercial renovation for retail space rely on computer models and product selection/design to achieve a specific net reduction of energy consumption


During the summer, Northwestern completed two instrumental projects that will literally pave the way for campus growth. Construction provides spectators the unique opportunity to catch a sneak preview of what is to come.
The new ring road and parking lot, constructed behind Riley Hall, were built as prerequisites for the upcoming Community Life Commons (CLC). Plans for the CLC were announced in November 2007 with the public launch of the Envision Excellence campaign. Now, one year later, preparatory construction is successfully under way for the CLC groundbreaking in the spring, with a completion goal of Summer 2010.
Associate Vice President of Facility Operations and Planning Brian Humphries defines last summer as "phase one" of the two-year project. He believes that the newly constructed road and parking lot will be significant in two ways. "First, the ring road will create new traffic patterns," Humphries explained. "Second, the new lot will provide enough parking space when those [parking by] Nazareth relocate during [future] construction."
Major construction for the summer began May 19, 2008. In order to complete the project, the construction crew transplanted trees, removed a hill, installed road lighting and created a secured pedestrian tunnel. While these activities required traffic rerouting and parking relocation, the overall impact on campus employees was minimal.
With minor setbacks and diligent efforts, the construction team successfully completed the summer project on August 15, 2008. Blessed with good weather, Humphries describes the summer as "flawless." He explained, "For a project this size, everything went as smoothly as it possibly could have."
For Humphries, a successful summer means a busy school year. Major construction on the CLC is scheduled to begin in April 2009. However, before any walls go up, more work must be done behind the scenes. Humphries’ to-do list includes partnering with architects to complete construction documents, obtaining final city approval and negotiations for a general contractor.
It’s evident that improvements on campus are happening fast. Humphries’ list will quickly evolve into maintaining the brand-new CLC building, which he says will "transform the campus." So, catch the sneak previews while you can! More trucks are coming to pave the way for an exciting time of growth for Northwestern.
Written by Melissa Therrien.


Regeneration of Clune Park
The Clune Park Regeneration area consists of 430 flats in 45 four storey tenement buildings. The majority of the flats are small, with 69 bedsits, 310 one bedroom flats and 51 two-bedroom flats. As a result the area has one of the highest densities of housing in Inverclyde. The Clune Park estate also has the highest rate of below tolerable standard (BTS) housing and the highest void rates of any neighbourhood area in Inverclyde. There are no resident owners within the estate and the occupancy rate across the estate is less than 10%, with a number of buildings being wholly unoccupied.
A regeneration plan for the Clune Park area was approved by Inverclyde Council in May 2011. With the publicly stated aim of that plan being the demolition of all 45 buildings within the estate to allow progress to be made in regenerating the area.
Further information on the Clune Park Regeneration Plan can be found in the undernoted pages.


Boat Safety Procedures – Requirements For Boating
We now have a comprehensive fleet of RIBs out there for safety boat filming & hire vessel hire UK wide with rates starting from #295 + VAT/day. In addition, we provide work boats and bareboat RIB employ on both short & long term basis, with drivers & team, or on a’bare-boat’ foundation at very competitive rates to clients throughout the nation.
We pride ourselves on providing an entirely professional, reliable and competitive service; being in a position to supply a truly nationwide service at great rates.
We provide safety boat services and RIBS to get a vast range of projects including on-water installations and contract functions such as scaffolding erection and bridge painting, structural and bridge surveys, environmental management and wildlife protection duties. We also hire boats for filming and media purposes, under-bridge inspections, environmental surveying, rope access and pontoon installations. Our services include providing safety boats, response and rescue boats as well as work boats for functions to be carried out from. We’re experienced and specialise in providing safety boat hire and boat hire for functions and surveys to be carried out from on inland waterways, inshore and offshore projects. Our staff are always professional, discreet and completely dependable.
Security Boat Hire
Security Boats UK provide safety boat hire services and safety boat hire for marine construction, civil engineering and environmental projects, amongst other people, throughout the UK.
We’re ready to provide commercial safety boats for a vast range of projects from on-water installations and contract functions such as scaffolding erection and bridge inspections to flood barrier repairs and environmental surveys.
As part of our safety boat hire services, as standard, all our boats come with a competent and competent helm; nonetheless additional team may also be supplied as and where required. In addition, we offer bareboat Rib hire should you not require staff with the safety vessel.
We have a fleet of safety boats available for rent ranging in size from smaller 3.5m boats through to 7.5m Ribs, all with powerful outboard engines. When using some of the more compact safety vessels in our fleet we are ready to deploy lightweight safety boats for inshore tasks, particularly where accessibility can be challenging or water depth a problem. Larger boats, which come fully MCA coded could be deployed on coastal and off-shore projects. All our boats are well preserved and over the first few years of the life.
We’re ready to mobilise our safety vessels for hire fast and efficiently, and can operate on any UK waterway. All our boats are trailered and so may be deployed quickly and easily, even if access is difficult or restricted. We pride ourselves in providing a super dependable, professional and affordable service to clients, both big and small.


Eya Bantu ensuring quality on Wind Farms
In 2019 one of Eya Bantu’s employees, Andrew Hugo, was contracted in and appointed as the Resident Engineer during the construction of the Perdekraal East Wind Farm.
Perdekraal East Wind Farm was completed in October of 2020 and is now commercially operational and consists of 48 turbines with a total combined output of 110MW.
The turbines are 115m high with blades 55m long putting the highest point of the turbines at an impressive 168m above the surrounding ground level.
These 48 turbines can generate electrical energy to power 111,118 South African homes.
More info on the wind farm can be found here: www.perdekraaleastwind.co.za


Structural Engineers Association of Colorado (SEAC)
The overall objective of SEAC is the advancement of the practice of structural engineering for the benefit of public safety and the structural engineering profession.
SEAC was established in 1954 as an organization of structural engineers who were owners of structural engineering or architectural firms and was expanded in 1992 to include all structural engineers and persons with an interest in the objectives of SEAC.
SEAC activities include breakfast technical meetings on a bi-monthly basis, a fall seminar, an annual dinner, as well as many active professional and technical committees.
Interested in sponsoring or advertising with SEAC? Please see below:
General Meeting Sponsor
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The 2023 SEAC Business Management Committee Company Benefits Survey is now available for $500. Click here for more information.
SEAC is now has a YouTube Channel. We will be adding content, so check back frequently. Click here to view the channel.


Picote has developed a wide range of tools to use with Picote Millers for the very efficient high-speed drain cleaning of cast iron, clay, concrete and PVC pipes from DN32 - 300 / 1¼" - 12".
The Tiger Range
The Tiger Range offers a high performance, comprehensive tool set for cleaning pipes, reinstating connections and removing collapsed liners and other materials. All of the tools are designed to be used with our Picote Miller Range, and are manufactured using unique, super strong carbide teeth, which are designed to be very aggressive and long lasting.
Range includes: Tiger Original Chain, Tiger Cyclone Chain, Tiger Drill Chain, Tiger Bore, Tiger Twister Liner & Concrete Remover.
The Tiger Drill Chains are an advanced solution that are equipped with an integrated front drill head to help you push through roots and lightly collapsed liners. The integrated front drill head is also manufactured with the hardened Tiger carbides for maximum aggression and efficiency to tackle tough jobs!
Picote Grinding Chains
Picote Grinding Chains are multi-use tools which are extremely effective at removing large build-ups of scale and more. Find out about all of the models and sizes available.
Watch our chains in action:
Twister Metal Grinder
The Twister Metal Grinder quickly and efficiently grinds most metals, including nails, screws, steel rods and lead joints. Brushes provide added stability for safe removal.
- Available for DN100 / 4".
- Safe for cast iron, PVC, concrete and clay pipes.
- Operated by Super Midi and Maxi Miller.
The Smart Spider
The Smart Spider is a unique tool designed specifically for pipes where the base is missing or there are holes in the pipe. Easily navigates 90° bends.
Watch the Smart Spider in action on YouTube
The Twister Cleaner
The PVC Twister Cleaner is is a gentle option for PVC pipes. Suitable for cleaning DN100 / 4” this useful tool is also effective at removing small inconsistencies inside pitch fibre pipes. Use with the Midi Miller or Maxi Miller for outstanding results.
PBF Drainage, UK
What our customers say
"We have tried out the new PVC Twister Cleaner and found it good not only in PVC but also in pitch fibre to remove small defects as it is less aggressive than other tools. For example under a newly built conservatory, a PVC pipe that required lining was cleaned with the new PVC Twister Cleaner. The PVC Twister Cleaner was successfully used to scour the pipe to enable a good bond to be made with the epoxy resins that were used within the liner during installation.”
Mini Smart Sweeper
MORE EFFICIENCY TO CLEANING SMALL PIPES. A GAME CHANGER FOR 2” PIPES
Picote introduces the Mini Smart Sweeper product family providing more efficiency and power to cleaning smaller pipes ranging from DN50-DN100/2”-4”.
The Mini Sweeper easily goes through 90 degree bends even in DN50/2” pipe. In challenging situations, take advantage of the Mini Sweeper tools.
Remove hard turbuculent and grease in small pipes, including bathroom lines and kitchen sinks. The small body of the Mini Sweeper is compact and self adjusting. Go through challenging bends and P-traps in 2” pipe and get the pipe cleaner than ever before.
Special Drill Heads
Picote's range of Special Drill Heads can be used to unblock pipes to make space for larger tools or used in conjunction with the original grinding chains as pilot bits to easily cut into tough blockages such as tree roots, grease and tuburculation.
The ridged drill heads allow for greater navigation through bends and even cast iron P traps.
A PVC Special Drill Head is also available - The safety ring gives the drill head the ability to be used in PVC, clay and lined pipes. This feature means more reliability with less risk of damage to the host pipe
Special Drill Heads can also be used to re-open connections when larger tools, like Twister, cannot fit through pipe or there are dimensional changes inside the pipe. The remaining edges can then be removed using the Smart Cutter.
Our most versatile cutter was initially developed for re-opening lined branches in buildings. It has also been tried and tested in may other scenarios:
-Reinstatement of lateral /branch connections
-Descaling metallic pipes
-Removing hard deposits, limescale and encrustation on pipe joints
-Cutting out tree roots
-Removal of internal welds in pipework
-Grinding back steel reinforcement bars / metal fence posts after the Twister Metal Grinder has been used
-Removing inconsistencies in pipes such as slugs of resin, fins and wrinkles in linings
-Grinding back intruding plastic lateral connections
-Polishing internal metal pipe surfaces to improve flow
-Scouring the pipe surface prior to coating the pipe with the Picote Brush CoatingTM system to enable a good bond
Removes concrete, grout, slurry and large rocks. May be used to grind offsets in clay and concrete pipe which provides for superior finish after lining.
DN100 & DN150/4” & 6” models available with or without steering axle.
Now available for the Maxi Miller and Maxi Power +.


Interior Basement Waterproofing Systems
We have a comprehensive line of professional grade products to meet all your Waterproofing needs.
- Surface Preparation
- Waterproofing Membrane
- Drainage Board
- Protection Board
Our Waterproofing Basement Columbia options also include 4″ ADS, single wall HDPE perforated pipe. This flexible, lightweight renewable merchandise is excellent for subgrade irrigation water control. The drain tube, also called drain tile is connected to a polyethylene sump basin which holds the groundwater collected and channeled to it from the ADS pipe. A cast-iron Zoeller sump pump using a 1-” PVC release line is set up by the 20000 Leaks team into the sump basin. For additional protection there are Zoeller backup pump options which may be installed in precisely the exact same basin either centrifugal, water-powered or battery backup.
River wash gravel is placed in the drain trench to aide in water flow. Then we put in Polydrain, an air-gap tech drainage board in the cove place where the base wall meets the basement floor. This heavy duty built drainage matting is bent and placed up the wall and above the trench. It increases water drainage and directs intruding water because of hydrostatic pressure into the subgrade tile program. Following the installation of the Polydrain the trench is sealed using commercial grade concrete.
Interior Waterproofing Basement Columbia solutions may also include things like wall systems. Options are a 6 mil polyethylene vapor barrier that’s tucked in the Polydrain and set up normally from floor to ceiling. To get a cleaner appearance and for walls using a high moisture content Polywall, an extruded resin sheet could be set up. It is easy to clean, 100% waterproof and doesn’t support mold, mildew or bacteria growth. For wall regions with higher water content, such as corners, problem areas or old construction, Polydrain may be set up full wall or chest high.
Exterior Basement Waterproofing Solutions
After evaluation by our review team the best solution is to waterproof your basement in the exterior. This necessitates excavating the soil surrounding your base walls to the footings and installing a bituthene watertight membrane. Again, we simply use professional grade materials for this particular application, Henry’s self-adhering Blueskin.
Before starting the project Ms Utility is contacted from the 20000 Leaks group to possess the excavation place marked for any underground utility lines. As qualified base builders you may be sure the stability of your base is in good hands. The depth of the excavation determines exactly what heavy equipment will be essential to execute the digging.
Following the base walls are excavated they’re cleaned and inspected for any flaws or cracks.These are patched and repaired before employing the Blue skin primer. Outside temperatures and base wall temperatures are crucial in the application of the primer and self-adhering membrane. The identical day the primer is implemented the self-adhering membrane is also set up on the walls and the footers to insure an impermeable watertight barrier. Before backfilling the surface, the membrane should be protected with a durable tear resistant drainboard, so the membrane is not damaged during the procedure. Following the area is backfilled, the soil is then tamped from the 20000 Leaks staff to business the loose soil around the house ‘s base.


Over the past few weeks we’ve been asked more and more about how our 12mm Construction Boards compare to plasterboard. We have endeavoured to answer these questions and outline how they can be used as a replacement to help you complete your projects.
Whilst the boards aren’t comparable in many ways, with the Construction Board being water resistant, more impact resistant and fully A1 fire rated, it is a product that can be used instead of plasterboard and gives a far superior outcome. With the current shortage of plasterboard many professionals have now made the switch and are finding that the 12mm Construction Board can do much more for them than just plasterboard meaning that they don’t have to have a variety of boards on site. This one board can reduce the need for multiple other boards on site.
Take a look at the video below.
How big are the STS Construction Boards?
- 12mm x 800mm x 1200mm
- 12mm x 1200mm x 2400mm
Can STS Construction Boards be used with Multi-finish?
Yes – please make sure your fix the boards to your substrate and prime your boards first to remove issues of dust or debris. We’d always recommend a SBR primer (2 coats) over a PVA too. Apply your multi-finish when the second coat is still slightly tacky.
Can you apply Multi-finish or similar to all STS Construction board thicknesses?
Yes our 6mm, 9mm and 12mm Construction boards will take Multi-finish. Please make sure you fix to your substrate and apply and SBR primer as above.
What thickness of STS Construction board would you recommend as a wall board?
The 12mm is an industry favourite for use as a wall board especially if fitters are trying to match up to walls with plasterboards already fitted.
What are the main benefits of using STS Construction board over plaster board?
Really the two boards are completely different in terms of their composition. The high strength, impact resistant Fibre Cement mixture of materials in the Construction board means it’s really popular.
One Board. Multiple Applications.
FIRE PROTECTION: Our 12mm board has a 112 minute burn time on a single skinned wall with an A1 fire rating. Plasterboard does not hold the same
IMPACT RESISTANT: STS Construction board is high impact to meaning it is a great solution for high traffic areas.
RECYCLABLE: STS construction board is also 100% recyclable, plasterboard isn’t.
WATER RESISTANT: Ideal partition walling in damp or wet areas. It’s also weather resistant, so can be exposed to poor weather on site during the construction phase without concern. A weather protective coating is required for permanent exposure.
We’d be happy to answer question in our Q & A session so if there is a specific topic you’d like us to discuss please reach out.


ABCC needed to cut disputes: Fed Govt
Federal Employment Minister Eric Abetz said there is an "urgent" need to re-establish the Australian Building and Construction Commission (ABCC), following reports that industrial disputes on building sites are acting as a barrier to international construction firms from operating in Australia.
Senator Abezt said the re-establishment of the ABCC would "stamp out lawlessness and improve productivity on building sites". It would also help create jobs, he said.
"The Coalition Government introduced legislation to re-establish the Australian Building and Construction Commission last year but it is being held up by the Labor-Green alliance," Senator Abetz said. "Dodgy union bosses are being more militant than ever before with illegal strikes in defiance of court orders and thuggish behaviour on building sites."


The energy performance certificate of a building is a technical document for information purposes that certifies the energy performance of that building.
In the European Union, the EC Directives 91/2002 and 31/2010 regulate the obligation that all the building categories must have energy certificates to show the energy consumption efficiency. Such directives apply to all the members states and also to those in the accession process.
The simplified methods for calculation of the heat requirements are based on the European Standards EN 832 and EN ISO 13790, which were designed to unify the concept of energy consumption in the building sector and to compare the performances thereof.
In Romania the obligation to obtain the energy certificate is set out in the Law no. 372/2005 on the building energy performance and the Order no. 1459/2007 approving the Methodological Rules on the energy performance of buildings, issued by the Ministry of Development, Public Works and Housing.
The energy performance certificate can be issued as a result of an energy audit process conducted with the purpose of selling and buying, of leasing or for the purpose of thermal refurbishment and upgrading of the building.


Whitechapel station is one of the most challenging and congested sites in one of the most complex railway engineering projects undertaken in Europe. Its protected Victorian façade and dense urban location with diverse local community, neighbouring school, and The Royal London Hospital all sit adjacent to this important transit interchange connecting the District, Hammersmith & City underground lines with the Overground system and now, the new Elizabeth Line.
Following a stringent assessment of people movement and circulation within the station, we have created a new concourse and Elizabeth Line platform, radically reorganising a heritage building. Capacity studies demonstrated that an increase in passenger numbers could be accommodated without the removal of important heritage buildings, which contribute to the local character. Crucially, the design emphasis shifted from a below-ground, subterranean solution to an above-ground station bridge, which enhances connectivity and accessibility.
Entry to the station is through the original refurbished and reinstated 1876 entrance on Whitechapel Road and a spectacular new walkway alongside the concourse leads to a new pedestrian entrance on Durward Street at the northern end, improving connectivity to the surrounding area.
The spacious new ticket office sits on a concourse which has been built on a bridge that floats above the underground and overground tracks that pass through the station. The raised structure allows daylight to stream down on to the platforms. In this way, Whitechapel station feels very different to other underground stations; the daylight, natural ventilation and open environment create a welcome ambience in this congested part of the capital, enabling people to enjoy fresh air and views to the outside environment from the concourse, with enhanced historic features which highlight the unique personality of the existing buildings.
A new green, sedum roof covering the main station concourse delivers both environmental and aesthetic benefits, reducing the heat island effect, improving air quality, noise and storm water attenuation and enhancing biodiversity.
A new public space to the north has enhanced the character of the local area as well as providing access to the Elizabeth line platform via three escalators and a lift. A widened stone-paved footway forms a forecourt for the new ticket hall and concourse. Court Street to the west leads to a pedestrian bridge over the Underground tracks, with improved paving and lighting. Part of the strategy was to ensure there was a common architectural language, both for the excavated element of the main station construction and at platform level, with original, culturally relevant elements retained throughout.
The new Whitechapel station is all about making connections. The design connects communities, connects nature to the cityscape and connects people to their destinations. It’s a 21st century station that meets the demands of London’s citizens, commuters and tourists and is a stunning backdrop to travel around the capital.


The desire to improve building efficiency and effectiveness is never-ending for the professionals who design, build, and manage facilities. Building Automation Systems (BASs) can help you achieve these goals, delivering intuitive, data-driven building controls.
At Johnson Controls, we make everything from simple, configurable Smart Building Controls to highly programmable automation systems. We design these building automation systems from the ground up for specific systems or entire facilities and campuses.
Our next-generation building control systems can extend automation to every aspect of your building, including:
All these aspects are intricately integrated into a single platform, giving you complete power over your building controls via an innovative building automation system.
We also make control systems and components for commercial refrigeration equipment as well as a full line of HVAC Equipment for the ultimate building control system.
Our industry-leading building control systems are designed to prioritise occupant safety and productivity in any space or environment. Configurable BAS controls seamlessly integrate with smart equipment, resulting in intelligent building design. Together, they empower you to:
Seamlessly integrate diverse systems for smart building control.
Configurable building control system for easy integration with smart equipment.
Discover the potential of Metasys Building automation system controls for your property.
Explore building control integration possibilities for existing technologies in your buildings.
Achieve goals, make strategic financial choices, and oversee the setup, maintenance, and connectivity of your building's infrastructure - all at a predictable monthly cost. We provide uninterrupted assistance, month after month, enabling you to concentrate on your primary operations while enjoying the lasting advantages of collaborating with Johnson Controls.Learn more


Panel and Post Retaining WallsThey're our specialty
Bradford Retaining have been manufacturing and installing the cost effective panel and post retaining walls Perth has come to know and love since 1979.
Bradford Retaining offer a cost effective solution compared to other retaining types with significant space saving advantages.
Bradford Retaining are market leading in Manufacturing, Engineering and it’s installation service. All Bradford Retaining products and installation services come with a 5yr guarantee.
Why Choose Us For Your Next Retaining Wall Project?
We focus on providing the best panel and post concrete retaining walls to our Perth customers which are a great cost effective alternative to brick and limestone walls. The main issue with traditional retaining systems is the thickness which wastes your valuable land space. Our panels are only 13cm thick to ensure your outdoor living area stays spacious and comfortable.
Our retaining walls are a cinch to install which brings your cost down significantly. Head to our DIY Retaining page where you can read our step by step instructions if you wish to tackle the project yourself.
All our products are Structurally Engineered and Shire approved. We guarantee a premium product, using
only galvanised steel reinforcing throughout our panel and posts, as well chemical additives in the concrete for increased strength.


Vinyl Ester & Polyester
Fiberglass-reinforced vinyl ester and polyester composites with unusual toughness and excellent retention of physical properties over a wide range of temperatures.
QC-8800, QC-8700 and QC-8560 family of composite materials provide a unique combination of properties for structural applications combining expected composite advantages of light weight, corrosion resistance, electrical insulation with unusual toughness and strength.
These materials retain room temperature properties down to at least -60°F
QC-8700 & QC-8560 high-temperature vinyl ester ESC® materials retain significant mechanical properties at elevated temperature relative to regular vinyl ester and polyesters.
Versions of QC series materials are available with fiberglass lengths of 1 inch to 0.25 inch along with continuous unidirectional or multi directional fiberglass.
Other options include:
- Flame-retardant version
- Molded in colors
- Low density (density of 1.2 or less)
- Conductive fillers
- Reduced aerial (mat) weight