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A new ASTM standard, C 1646/C 1646M , Practice for Making and Curing Test Specimens for Evaluating Frost Resistance of Coarse Aggregate in Air-Entrained Concrete by Rapid Freezing and Thawing, now provides requirements for specimen preparation for C 666 testing. Both C 666 and C 1646 are under the jurisdiction of Subcommittee C09.67 on Resistance to the Environment, part of ASTM International…
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Two recently formed task groups on preparing pervious concrete specimens and research will be participating in the first meeting of the new Subcommittee C09.49 on Pervious Concrete from 8:00 to 10:00 a.m. on June 25 during the ASTM Committee Week in Norfolk, Va. C09.49 is part of ASTM International Committee C09 on Concrete and Concrete Aggregates. Heather Brown, Middle Tennessee State University…, Standardization News, , Karthik Obla, chair of Subcommittee C09.49, noted that there has been a resurgence in interest in pervious concrete due to the U.S. Environmental Protection Agency’s recent recognition of its use as a best management practice for storm water management. An increasing focus on sustainability and the green movement has also contributed to the importance of pervious concrete as a building material…
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While the polymer-based siding industry developed around the use of polyvinyl chloride, the last two decades have seen the introduction and rise in use of polypropylene as a siding material. Because of this, siding producers and polypropylene suppliers began to discuss the need for an ASTM standard for this type of siding. These discussions have resulted in the development and recent approval of…
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ASTM International Committee C09 on Concrete and Concrete Aggregates invites all interested parties to attend the first meeting of new Subcommittee C09.49 on Pervious Concrete during the June ASTM Committee Week in Norfolk, Va. The Executive Subcommittee of C09 approved the formation of the subcommittee after more than 60 attendees expressed significant interest and feedback at a formational…
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A proposed new ASTM International standard, WK12964 , Specification for Blended Supplementary Cementitious Materials, will enable producers, especially those with limited silos, to take advantage of the benefits of blending materials. WK12964 is being developed by Subcommittee C09.24 on Supplementary Cementitious Materials, part of ASTM International Committee C09 on Concrete and Concrete…
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ASTM International Committee D20 on Plastics is currently developing a proposed new standard that will be used for the determination of flammability characteristics of polymeric materials under laboratory conditions. The proposed standard, WK9492 , Test Method for Determining Flammability Characteristics of Plastics and Other Solid Materials Using Microscale Combustion Calorimetry, will be useful…
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ASTM Committee C09 on Concrete and Concrete Aggregates will hold a planning meeting for proposed new standards activity on pervious concrete on Dec. 4 at the C09 meeting in Atlanta, Ga. The committee is especially seeking researchers who have been experimenting with different types of tests for pervious concrete, as well as specifying engineers, concrete technologists and contractors. “Many…
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A new ASTM standard, C 1610/C 1610M , Test Method for Static Segregation of Self-Consolidating Concrete Using Column Technique, satisfies a need within the industry for a test method to measure the stability of self-consolidating concrete. The standard is under the jurisdiction of Subcommittee C09.47 on Self-Consolidating Concrete, which is part of ASTM International Committee C09 on Concrete and…
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Quality control scientists, plant processing engineers and polymer formulation scientists are likely users of a new ASTM International standard, D 7210 , Practice for Extraction of Additives in Polyolefin Plastics. The standard was developed by Subcommittee D20.70 on Analytical Methods, which is under the jurisdiction of Committee D20 on Plastics. Practice D 7210 covers a variety of extraction…
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Dried blood represents the greatest challenge to cleaning surgical instruments. To meet this challenge, ASTM International Committee D12 on Soaps and Other Detergents has developed a new standard, D 7225 , Guide for Blood Cleaning Efficiency of Detergents and Washer-Disinfectors. The new guide is under the jurisdiction of Subcommittee D12.16 on Hard Surface Cleaning. Water-soluble components of…