Retaining Walls News
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Urban greening reduces noise pollution
Green roofs have the potential to significantly reduce road traffic noise in the urban environment, according to a new study. The results suggest that greening of roofs and walls with materials suitable for growing plants softens the urban environment keeping sound levels low, whereas hard, manmade structures tend to amplify traffic noise. The Environmental Noise Directive (2002/49/EC)1 ...
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University of Florida in Gainesville, FL wins First Prize for Large Institutions RainWorks Challenge
The U.S. Environmental Protection Agency today announced that the University of Florida at Gainesville, Florida won first prize among large institutions in the Agency’s first Campus RainWorks Challenge. EPA created the challenge to inspire the next generation of landscape architects, planners and engineers to develop innovative green infrastructure. The design submitted by the winning team ...
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Wall Street Green Summit XII
The Wall Street Green Summit is the longest running and most comprehensive environmental market event in the industry. Launched in 2002 by Peter Fusaro, The Wall Street Green Summit covers cutting edge content, industry developments and features the practitioners and the leaders of tomorrow. Hear it here first! The Wall Street Green Summit XII is the “one-stop shop” to come up to ...
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New network rail certificate of acceptance for Tensar TriAx TX190L Geogrid in rail track ballast and sub-ballast applications
Tensar TriAx TX190L geogrid has been developed specifically to improve rail track ballast stability and so maintain track geometry. Its unique advantages are recognised in the November 2012 issue of Certificate No. PA05/05505 by Network Rail’s Technology Introduction Group, Asset Management Services; Network Rail endorsement is widely regarded internationally as representing the highest ...
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Green infrastructure in street canyons could reduce air pollution
Planting vegetation in city streets could significantly reduce air pollution in urban street canyons, according to new research. Traffic pollutants are deposited on vegetation at a higher rate than on hard, built surfaces and could reduce the concentration of nitrogen dioxide (NO2) and PM10 in the air by as much as 40% and 60%, respectively, under certain conditions. Outdoor air pollution is a ...
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Burgeoning Green Roofs and Green Walls Market to be Worth $7.7 Billion in 2017
Green roofs and green walls, sought to address environmental issues like air pollution, heat-island effect, and loss of green spaces in cities, will balloon into a $7.7 billion market in 2017, driven by mandates and incentives by cities across the globe, according to Lux Research. Green roofs will account for $7 billion of the market, presenting a $2 billion opportunity to suppliers of polymeric ...
By Lux Research
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Tensar International continues global expansion with New Russian Plant
Tensar International has signed an agreement to build a manufacturing plant in Russia. Tensar is the majority shareholder in this joint venture, with remaining investment coming from Russian partners. Don Meltzer, CEO of US parent company, Tensar Corporation, and Bob Vevoda, Chief Operating Officer and President of Tensar International, met with their Russian JV partners in London earlier this ...
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Tensar Geogrid technology offers sustainable solutions for Rail Trackbed and structure stability
Tensar International has led the world in the design and manufacture of trackbed stabilisation, ground stabilisation and soil reinforcement solutions since the 1970s. Continuous development and innovation of geogrids and geotextiles, including many patented designs, have led to their use in railways across Europe and the world, as well as road, bridge, embankment, runway and many other ...
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Resisting subsidence pitfalls with Tensartech retaining wall solutions
Extensive underground mining in south Poland posed a significant challenge to construction of the A1 motorway which forms part of the connection between the Czech border, Piekary Slaskie and on to northern Poland. To accommodate potential differential settlement on the approach embankments to bridge structures, the engineering consultant consortium addressed the challenge by designing ...
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Anti-desertification plan gets official launch in Rio
Organisations from Africa, Brazil and France have officially launched a scientific collaboration to fight desertification in Africa. The collaboration was discussed at the Fight Against Desertification in Africa conference in Niger in October 2011. The 'Declaration of Niamey' adopted at the conference highlighted the need for interdisciplinary research in the fields of desertification, drought ...
By SciDev.Net
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Green Roof Industry Aggressively Grows 115% in 2011
Editors Note: There is a Bar Graph available with this Press Release. Green Roofs for Healthy Cities (GRHC) is pleased to announce the results of its 2012 Annual Industry Survey of Corporate Members. "The green roof industry grew by 115 percent over the course of 2011, up significantly from 28.5 per cent growth recorded in 2010," said Steven W. Peck, GRP, President of GRHC. "This great news ...
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Tensar announces closure of $175 million restructured credit facility with a group of lenders agented by GE Antares Capital
April [30], 2012 –Tensar Corporation (“Tensar”) announced today the successful closure of a restructured $175,000,000 credit facility with a group of lenders agented by GE Antares Capital. The proceeds from the financing will provide Tensar the financial stability to focus on achieving its long-term revenue and profit growth objectives. As a result of this restructuring, ...
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PHYTO Partners with The Nature Conservancy
In celebration of Earth Day on April 22, 2012 and beyond, consumers nationwide can help restore the critically endangered Atlantic Forest in Brazil by purchasing a limited edition Phytopolleine. Beginning April 1, 2012, this 100% essential oil scalp treatment will be launched by renowned botanical hair care brand PHYTO and will support The Nature Conservancy's "Plant a Billion Trees" campaign. ...
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AGRION/Green spaces NY Cleantech pitch competition
AGRION, the international network of energy and cleantech professionals, and Green Spaces, the coworking community for environmental and social entrepreneurs, have partnered to create a lively, fun, cleantech-focused pitch competition, where the prize is a slot to present, and $1500 ticket to, the Wall Street Green Summit on March 19th and 20th. An expert panel of judges will slice and dice the ...
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ASTM C140 - 12 Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
These test methods provide general testing requirements for application to a broad range of concrete products. Those general testing requirements are included in the body of this standard. Note 2—Consult manufacturer, supplier, product specifications, or other resources for more specific measurement or testing guidelines for those products not addressed with the annex of this ...
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ASTM C840 - 11 Standard Specification for Application and Finishing of Gypsum Board
This specification covers requirements for the methods of application and finishing of gypsum board. Construction details for a specific assembly to achieve the required fire resistance shall be obtained from reports of fire-resistance tests, engineering evaluations, or listings from recognized fire testing laboratories. Gypsum board assembly shall conform to ...
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ASTM C1623 - 11 Standard Specification for Manufactured Concrete Masonry Lintels
This specification covers concrete masonry lintels (beams) that are solid in cross-section, are reinforced for flexure, and are made from hydraulic cement, water, and mineral aggregates with or without the inclusion of other materials. These lintels are suitable for both loadbearing and nonloadbearing applications. Compression and absorption tests ...
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Tensar Corporation Promotes Robert Vevoda to Chief Operating Officer
Tensar Corporation, announced today Robert Vevoda has been promoted to Chief Operating Officer (COO). In this new position, Vevoda will be responsible for global manufacturing operations in addition to heading up commercial operations as President of Tensar International Corporation, the leader in geosynthetic soil reinforcement and stabilization. “With Bob’s experience and successes ...
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ASTM C1692 - 11 Standard Practice for Construction and Testing of Autoclaved Aerated Concrete (AAC) Masonry
This practice applies to the materials and methods used in the construction of AAC masonry. It directly references the AAC materials standards under the jurisdiction of ASTM Committee C27 and the workmanship requirements of TMS 602-08 / ACI 530.1-08 / ASCE 6-08 and supplements those workmanship requirements with additional requirements particular to AAC masonry. 1. Scope 1.1 ...
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ASTM D4595 - 11 Standard Test Method for Tensile Properties of Geotextiles by the Wide-Width Strip Method
The determination of the wide-width strip force − elongation properties of geotextiles provides design parameters for reinforcement type applications, for example design of reinforced embankments over soft subgrades, reinforced soil retaining walls, and reinforcement of slopes. When strength is not necessarily a design consideration, ...
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