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Because of its porous nature, pervious concrete cannot be tested using standards developed for traditional concrete. In order to fill this need, ASTM International Committee C09 on Concrete and Concrete Aggregates is developing a series of proposed test methods specific to pervious. The first of these proposed standards, ASTM C1688/C1688M , Test Method for Density and Void Content of Freshly…
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Two new calibration standards for use with X-ray fluorescence equipment in the chemical analysis of hydraulic cement are now available from the Cement and Concrete Reference Laboratory (CCRL). The new standards are designated Portland Cements 167 and 168 and are vacuum-sealed to prevent moisture uptake. Robin Haupt, supervisor, CCRL proficiency sample program, says that the two new cements were…
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Providing for the safety of children taking martial arts classes is the purpose of new ASTM Subcommittee F08.29 on Martial Arts, part of ASTM International Committee F08 on Sports Equipment and Facilities. According to Derek Croley, a Master Instructor, and James Green, PE, also a martial arts instructor and a longtime member of Committee F08 , standards for both safety of equipment and the…
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The increasing popularity of low energy air, or airsoft, guns has led to the creation of a Subcommittee F08.27 on Airsoft, part of ASTM International Committee F08 on Sports Equipment and Facilities. The new subcommittee had previously been a task group under the jurisdiction of Subcommittee F08.24 on Paintball and Equipment. Airsoft guns can be used with targets and in tactical gaming sports,…
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All interested parties are invited to participate in the development of a proposed new ASTM standard, WK18934 , Safety Specification for Steel Frame and Enclosure Components of Consumer Trampolines. The proposed standard, under the jurisdiction of ASTM Subcommittee F08.17 on Trampolines and Related Equipment, covers the steel frame and enclosure components of consumer trampolines. Subcommittee…
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The realization that concrete production is the result of a combination of several materials that are individually standardized, but which may interact in ways not governed by those standards, led ASTM International Committee C09 on Concrete and Concrete Aggregates to form Subcommittee C09.48 on Performance of Cementitious Materials and Admixture Combinations in 2004. The subcommittee has now…
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Applications are currently being accepted for the 2008 ASTM International Katharine and Bryant Mather Scholarship. Administered by ASTM International Committee C09 on Concrete and Concrete Aggregates, the scholarship applies to students pursuing degrees specializing in cement or concrete materials technology or concrete construction. Full-time undergraduate students completing their second/…
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A proposed new standard being developed by ASTM International Committee C09 on Concrete and Concrete Aggregates will monitor clogging and long-term permeability of pervious pavements as well as determine if early sealing of the pavement has occurred during construction. This proposed standard, WK17606 , Test Method for Permeability of Pervious Concrete Pavements, is under the jurisdiction of…
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All interested parties are invited to join in the activities of Subcommittee C09.49 on Pervious Concrete as it develops its first proposed standard, WK16885 , Test Method for Density and Void Content of Pervious Concrete. The subcommittee is under the jurisdiction of Committee C09 on Concrete and Concrete Aggregates. “WK16885 and forthcoming standards for pervious concrete arose from the need to…
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Protecting the eyes of athletes is the central purpose of ASTM International standard F 803 , Specification for Eye Protectors for Selected Sports. However, with an increasing number of sports requiring eye protection, Subcommittee F08.57 on Eye Safety for Sports has been developing individual standards covering eye protection for specific sports. The subcommittee, which is part of ASTM…