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A proposed ASTM International standard will be used by engineers, concrete producers and testing agencies to measure electrical resistance in fresh concrete. Participants are welcome to join the new task group that is developing this standard (WK50586, Practice for Measuring the Electrical Resistance of Fresh Concrete). The new standard will show how to sample fresh concrete, prepare a specimen…, ASTM Committee C09 on Concrete and Concrete Aggregates Next Meeting:, Dec. 6-9, 2015, December Committee Week, Tampa, Fla. , Media Inquiries:, Nathan Osburn, tel +1.610.832.9603; nosburn@astm.org, Technical Contact:, Dale P. Bentz, National Institute of Standards and Technology, Gaithersburg, Md., tel +1.301.975.5865; dale.bentz@nist.gov , ASTM Staff Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #9891
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A proposed ASTM standard will meet the need for a method that labs can follow when testing samples for mold. The proposed standard (WK17177, Test Method for Examination of Fungal Structures on Tape Lift Samples by Optical Microscopy) will provide labs with an approach based on quality and science. The primary users of the standard will be labs that provide services in the fields of occupational…, Committee D22 on Air Quality Next Meeting:, April 26-May 1, 2015, April committee week, Anaheim, Calif., Media Inquiries:, Nathan Osburn, tel +1.610.832.9603; nosburn@astm.org, Technical Contact:, Terri L. Williams, Wisconsin Occupational Health Laboratory, University of Wisconsin, Madison, Wis., tel +1.608.224.6261; terri.williams@slh.wisc.edu, ASTM Staff Contact:, Jeffrey Adkins, tel +1.610.832.9738; jadkins@astm.org Release # 9797 March 17, 2015 ###
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Alkali-aggregate reaction — the reaction that occurs over time between highly alkaline cement paste and noncrystalline silicon dioxide — can lead to a loss of concrete strength. A new ASTM International standard provides guidance on how to address the potential for such deleterious reactions in concrete construction. The new standard is ASTM C1778 , Guide for Reducing the Risk of Deleterious…, ASTM Committee C09 Next Meeting:, June 14-17, 2015, June committee week, Anaheim, Calif., Technical Contact:, Thano Drimalas, University of Texas at Austin, Manor, Texas, tel +1.512.471.1630; thano.drimalas@mail.utexas.edu ; Jason H. Ideker, Ph.D. (C09.50 chairman), Oregon State University, Corvallis, Ore., tel +1.541.737.9571; jason.ideker@oregonstate.edu , ASTM Staff Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org, ASTM PR Contact:, Barbara Schindler, tel +1.610.832.9603; bschindl@astm.org Release #9751
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Laboratories that conduct beam tests on fiber reinforced concrete are encouraged to join in the development of a new ASTM International standard, ASTM WK42757 , Practice for Design of Supporting Rollers to Be Used in Fiber Reinforced Concrete Beam Tests. According to ASTM member Stefan Bernard, the new standard is being developed in response to concerns over possible distortions in the magnitude…, ASTM Committee C09 Next Meeting:, Dec. 7-10, December Committee Week, New Orleans, La., Technical Contact:, Stefan Bernard, TSE Pty Ltd., Sydney, Australia, tel +61.4.1840.7892; s.bernard@tse.net.au, ASTM Staff Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org, ASTM PR Contact:, Barbara Schindler, tel +1.610.832.9603; bschindl@astm.org Release #9718
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Concrete is the most widely used construction material throughout the world. Understanding the drying behavior of a given concrete mixture is critical to any construction project. Ready-mix concrete producers and engineers will be able to use a new ASTM International standard to characterize how hardened concrete mixtures dry. The new standard is ASTM C1792 , Test Method for Measurement of Mass…, ASTM Committee C09 Next Meeting:, Dec. 7-10, December Committee Week, New Orleans, La., Technical Contact:, Dale P. Bentz, National Institute of Standards and Technology, Gaithersburg, Md., tel +1.301.975.5865; dale.bentz@nist.gov, ASTM Staff Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org, ASTM PR Contact:, Barbara Schindler, tel +1.610.832.9603; bschindl@astm.org Release #9701
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Concrete technologists need to have a well-defined, useful and efficient means to detect and possibly address concrete material incompatibility issues. This need will be addressed in a proposed new ASTM International standard, ASTM WK40615 , Practice for Mixing and Comparing Performance of Concrete Materials Using Mini-Mix Mortar Mixtures. Due to an increased focus on sustainability, the…, ASTM Committee C09 Next Meeting:, Dec. 7-10, 2014, December Committee, New Orleans, La., Technical Contact:, Ara A. Jeknavorian, Ph.D., Jeknavorian Consulting Services, Phone: 617-803-2612; ara.a.jeknavorian@gmail.com, ASTM Staff Contact:, Scott Orthey, Phone: 610-832-9730; sorthey@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9669
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Taking a tape-lift sample is one of the main practices used by indoor environmental quality investigators for detecting whether mold structures (for example, spores and hyphae) have either settled onto or colonized the surface. Despite the popularity of the method, there can be significant inconsistency in how tape lifts are collected. A new ASTM standard, ASTM D7910 , Practice for the Collection…, ASTM Committee D22 Next Meeting:, Oct. 5-8, 2014, October Committee Week, New Orleans, La., Technical Contact:, John M. Neville, Ph.D., Bureau Veritas North America Inc., Novi, Mich., Phone: 248-344-3042; john.neville@us.bureauveritas.com, ASTM Staff Contact:, Jeffrey Adkins, Phone: 610-832-9738; jadkins@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9655
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A new standard, ASTM D7886 , Practice for Asbestos Exposure Assessments for Repetitive Maintenance and Installation Tasks, will aid those testing asbestos exposures by quantifying such exposure levels. Regulations set forth by the U.S. Occupational Safety and Health Administration require that worker exposure to asbestos be determined with a “high level of certainty.” “ASTM D7886 overcomes the…, ASTM Committee D22 Next Meeting:, Oct. 5-8, 2014, October Committee Week, New Orleans, La., Technical Contact:, Andrew F. Oberta, MPS, CIH, The Environmental Consultancy, Austin, Texas, Phone: 512-266-1368; andyobe@aol.com , ASTM Staff Contact:, Jeffrey Adkins, Phone: 610-832-9738; jadkins@astm.org , ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9639
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In 1914, a small group of professionals gathered to work on methods for making and testing field specimens of concrete. The ASTM International committee that resulted from that first meeting — C09 on Concrete and Concrete Aggregates — celebrated its 100th anniversary during a reception and dinner on June 23 at the Sheraton Centre Toronto, Canada. The centennial celebration occurred during C09’s…, ASTM Committee C09 Next Meeting:, Dec. 7-10, 2014, December Committee Week, New Orleans, La., ASTM Staff Contact:, Scott Orthey, Phone: 610-832-9730; sorthey@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindler@astm.org Release #9605
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Gaseous hydrogen fluoride is a harsh respiratory irritant; the inhalation of hydrofluoric acid mists causes severe lung damage in exposed workers. A proposed new ASTM standard, WK38734 , Test Method for the Determination of Particulate Fluorides and Hydrofluoric Acid Using Filter Sampling and Suppressed Ion Chromatography, will be used to prevent overexposure of hydrofluoric acid/hydrogen…, ASTM Committee D22 Next Meeting:, Oct. 5-8, 2014, October Committee Week, New Orleans, La., Technical Contact:, Dietmar Breuer, IFA, Sankt Augustin, Germany, Phone: +49 (0) 2241 231-2533; dietmar.breuer@dguv.de , ASTM Staff Contact:, Jeffrey Adkins, Phone: 610-832-9738; jadkins@astm.org , ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9585