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The increased use of geomembranes as barrier materials to restrict liquid migration from one location to another created a need for a test method to evaluate the quality of geomembrane seams produced by tape methods. ASTM International Committee D35 on Geosynthetics has met this need with the approval of the new standard D 7272 , Test Method for Determining the Integrity of Seams Used in Joining…
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ASTM International Committee D35 on Geosynthetics has developed a new standard that is an important step toward the improvement of filtration design for non-woven geotextiles. The standard, D 7178 , Practice for Determining the Number of Constrictions “, m, ” of Non-Woven Geotextiles as a Complementary Filtration Property, will provide engineers and researchers a common basis for accurate determination of an important products property. Practice D 7178 is under the jurisdiction of Subcommittee D35.03 on Permeability and Filtration. Practice D 7178 describes the procedure used along with existing test methods to determine the number of…
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The rapid growth and variety of rides being developed within the water park industry has created a need for new standards to regulate the design and installation of water slides. While individual states within the United States had created rules and guidelines for water slides, these often varied greatly from each other. A new standard developed by ASTM International Committee F24 on Amusement…
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After a 35-year-absence, the natural cement industry is being revived and, along with it, a long-withdrawn ASTM International standard. Until it closed in 1970, the Century Cement Company in Rosendale, N.Y. was the last company to manufacture natural cement. Up to that point, Rosendale had been the center of the industry, the source of more than half of all natural cement produced in the U.S.…
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A new test method developed by ASTM International Committee C01 on Cement provides information about the behavior of cement that can be used in the process of selecting cementing materials for specific applications. The standard, C 1608, Test Method for Chemical Shrinkage of Hydraulic Cement Pastes, is under the jurisdiction of Subcommittee C01.31 on Volume Change. Test Method C 1608 was…
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ASTM Committee D35 on Geosynthetics will present a workshop on the possibility of creating a Geogrid Aperture Stability standard during the June Committee Week in Reno, Nev. The workshop will take place June 15 from 6:00 p.m. to 7:30 p.m. Steve Valero, Vice President - Technology, Tensar, will chair the workshop. Valero promises a productive and lively workshop that will be focused on educating…
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ASTM International Committee F24 on Amusement Rides and Devices currently has the following new proposed standards under development:, WK526 Netting, Subcommittee F24.24 on Design and Manufacture is currently developing WK526, Practice for Design, Manufacture, Installation and Testing of Climbing Nets and Netting/Mesh Used in Childrens Play Areas, Safety and Attractions. The purpose of the proposed standard is to reduce life-threatening and debilitating injuries associated with netted areas and attractions. "The amusement industry needed…, WK529 Water Slide Structures, Safety is at the heart of proposed new standard WK529, Guide for Classification, Design, Manufacture, Construction, and Operation of Water Slide Structures. The proposed standard, which is under the jurisdiction of Subcommittee F24.70 on Water Related Amusement Rides and Devices, will apply to water slides installed in public places such as water parks, hotels, resorts, and amusement parks.…, WK1074 Interactive Aquatic Play Equipment, In addition to WK529, Subcommittee F24.70 is also working on proposed new standard WK1074, Practice for Manufacture, Construction, Operations, Maintenance, and Water Quality of Interactive Aquatic Play Equipment. The proposed standard applies to interactive aquatic play equipment located in and around re-circulated and potable water, including swimming pools, activity pools, wave pools, lazy…