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Concrete producers of both ready-made and precast/prestressed concrete will be the primary users of a new standard recently approved by ASTM International Committee C09 on Concrete and Concrete Aggregates. The standard, C 1621/C 1621M , Test Method for Passing Ability of Self-Consolidating Concrete by J-Ring, is under the jurisdiction of Subcommittee C09.47 on Self-Consolidating Concrete. …
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ASTM International Committee C09 on Concrete and Concrete Aggregates has recently approved a new standard that will facilitate post-crack performance measurement for fiber-reinforced concrete intended for slabs-on-grade, pavements, pre-cast elements and shotcrete. The standard, C 1609/C 1609M, Test Method for Flexural Performance of Fiber-Reinforced Concrete (Using Beam With Third-Point Loading…
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According to a report published by the U.S. Consumer Product Safety Commission in April 2005, more than 10,000 emergency room-treated injuries and 49 deaths have been attributed to powered scooters since 1998. With these statistics in mind, ASTM Internationals Committee F15 on Consumer Products has formed a new subcommittee, F15.58 on Powered Scooters and Skateboards. The subcommittee was…
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Applications are currently being accepted for the 2006 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. Full-time undergraduate students completing their second/sophomore year of college, or later, or graduate students (specializing in cement or concrete materials technology) are eligible to apply. The…
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ASTM International Committee F15 on Consumer Products has revised a current standard and developed an important new one, both designed to keep children safe while they’re having fun. The residential play equipment industry is constantly changing, with new materials and components being introduced to the market every year. ASTM International Subcommittee F15.09 on Home Playground Equipment has…
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An important ASTM International standard that is used to reduce life-threatening and debilitating injuries on playgrounds has recently undergone extensive revisions. Specification F 1487, Consumer Safety Performance Specification for Playground Equipment for Public Use, is a comprehensive standard covering the full range of public playground equipment. It provides safety and performance…
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ASTM International, Committee C01 on Cement and Committee C09 on Concrete and Concrete Aggregates have joined forces to form a new subcommittee, C09.48/C01.48 on Performance of Cementitious Materials and Admixture Combinations. The scope of the new subcommittee is to develop and maintain standards for investigating interactions and evaluating changes in early-age properties when various combinations of hydraulic…
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ASTM International Committee C09 on Concrete and Concrete Aggregates has recently approved two new standards, C 1611, Test Method for Slump Flow of Self-Consolidating Concrete, and C 1622, Specification for Cold-Weather Admixture Systems. Descriptions of both new standards follow. , C 1611 Test Method for Slump Flow of Self-Consolidating Concrete, The concrete industry has been using self-consolidating concrete for the past several years. A new ASTM International standard developed by Committee C09 on Concrete and Concrete Aggregates, C 1611, Test Method for Slump Flow of Self-Consolidating Concrete, will allow users to measure the consistency of self-consolidating concrete for the first time. "Because of its high fluidity, the…, C 1622 Specification for Cold-Weather Admixture Systems, Using concrete during construction in cold weather is difficult since concrete can freeze before it hardens. However, a new ASTM standard, which is the result of a project to prove that antifreeze technology for concrete is feasible, will allow for greater use of concrete during construction in cold weather. ASTM Committee C09 on Concrete and Concrete Aggregates has approved the new standard…