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A proposed ASTM International standard aims to support use of new supplementary cementitious materials (SCMs) that are needed to continue supporting concrete sustainability. “SCMs are common industrial residuals used to bolster the sustainability of concrete by improving performance and durability while also reducing the environmental footprint of the material,” says Larry Sutter, assistant…, Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Committee Contact:, W Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #10937
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A proposed ASTM International specification will fill the need for a standard covering the use of colloidal silica, a versatile nanoparticle used in concrete that aids in durability. ASTM’s concrete and concrete aggregates committee ( C09 ) is developing the proposed release (WK60809). “Practical applications for colloidal silica in concrete include everything from walkway pavements to building…, Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Committee Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #10922
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ASTM International’s concrete and concrete aggregates committee ( C09 ) has developed a test method aimed at improving and standardizing the way that resistance of concrete to electrical current flow helps assess its durability. According to ASTM International member R. Douglas Hooton, saturated specimens of hardened concrete are tested to see how well they resist electrical currents. Concrete’s…
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Members of ASTM International recently revised a key test method ( D1613 ) that has been used to measure the acidity of fuel ethanol and denatured fuel ethanol, including ethanol used for car gasoline blends. By including a new “nitrogen purge” as part of the test method, a laboratory can help ensure that carbon dioxide is removed. According to ASTM International member Shon Van Hulzen, the…, Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Committee Contact:, Karen Murphy, tel +1.610.832.9525; kmurphy@astm.org Release #10521
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A proposed ASTM International guide will help concrete professionals use mortar mixtures to compare the relative performance and compatibility of concrete materials. The guide standardizes procedures used for many years in material-performance investigations, according to ASTM International member Ara Jeknavorian of Jeknavorian Consulting Services. “This diagnostic tool will provide concrete…, Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Committee Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #10466
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A new ASTM International standard will help manufacturing plants better recycle returned fresh concrete, supporting the growth in sustainable construction practices. The new standard (C1798, Specification for Returned Fresh Concrete for Use in a New Batch of Ready-Mixed Concrete), developed by ASTM’s committee on concrete ( C09 ), covers process, verification, and record-keeping procedures for…, ASTM Committee C09 on Concrete and Concrete Aggregates Next Meeting:, June 11-14, 2017, June Committee Week, Toronto, Ontario, Canada, Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Technical Contact:, Rich Szecsy, Texas Aggregates and Concrete Association, Austin, Texas, tel +1.512.451.5100; rich.szecsy@tx-taca.org, ASTM Staff Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #10244
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A new ASTM International standard will help with efforts to enhance the cement content in concrete while also reducing carbon dioxide emissions during production. The new specification (C1797, Specification for Ground Calcium Carbonate and Aggregate Mineral Fillers for Use in Hydraulic Cement Concrete) was developed by ASTM International’s committee on concrete and concrete aggregates ( C09 ).…, ASTM Committee C09 on Concrete and Concrete Aggregates Next Meeting:, Dec. 4-8, 2016, December Committee Week, Orlando, Fla., Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Technical Contact:, Caroline Talbot, Euclid Chemical, Cleveland, Ohio, tel +1.985.237.5685; ctalbot@euclidchemical.com, ASTM Staff Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #10184
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ASTM International will hold an organizational meeting to potentially create a new technical committee that develops voluntary consensus standards for the recycled vulcanized rubber industry. This includes both rubber and carbon black and has many practical applications including use in plastics, strengthening concrete, and infill for playgrounds. This, online meeting, is Wednesday, October 5 2016, at 10:00am EDT. Industry stakeholders and other parties interested in charting a path towards standardization for this industry are welcome to attend. Consensus standards could set a bar for this growing industry resulting in high-quality practices and products used worldwide. The objectives of the meeting are to: • bring a range of industry experts together…, ASTM Recycled Vulcanized Rubber Meeting:, Wednesday, 5 October 2016 at 10:00am (Eastern); online (Webex) meeting, Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, ASTM Staff Contact:, Joe Koury, tel +1.610.832.9804; jkoury@astm.org Release #10165
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A new ASTM International standard provides a test method that uses a specialized tool to prepare samples of and to test the density of roller compacted concrete (RCC). This will help companies that design mixes of RCC as well as laboratories that test RCC. The new standard ( C1800 , Test Method for Determining Density of Roller Compacted Concrete Specimens Using the Gyratory Compactor) was…, ASTM Committee C09 on Concrete and Concrete Aggregates Next Meeting:, Dec. 4-9, 2016, December Committee Week, Orlando, Fla., Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Technical Contact:, Stacy Williams, Department of Civil Engineering, University of Arkansas, tel +1.479.575.2220; sgwill@uark.edu, ASTM Staff Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #10161
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ASTM International has fully redesigned its International Laboratory Directory, the only directory in the world dedicated to helping manufacturers find the right labs to test their products. Independent laboratories throughout the world rely on thousands of standards and test methods, including many developed by ASTM International. By working with these labs, manufacturers can help ensure that…, Contact:, Anna Spektor, tel +1.610.832.9756; aspektor@astm.org, Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org Release #10110