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A new ASTM International standard will help manufacturers and suppliers of concrete and cement mixtures evaluate relative differences in early hydration of paste, mortar and other mixtures. The new standard (soon to be published as C1753, Practice for Evaluating Early Hydration of Hydraulic Cementitious Mixtures Using Thermal Measurements) describes the apparatus and procedure for such…, 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:, Tim Cost, Holcim US Inc., tel +1.601.856.2487; tim.cost@holcim.com , ASTM Staff Contact:, Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #9898
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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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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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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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A proposed new ASTM standard will provide a test method for determining the density and air content of roller-compacted concrete, which is used in the construction of dams and spillways as well as for highway road base material and wearing surfaces on some roads and parking lots. Once approved, ASTM WK42461 , Test Method for Density (Unit Weight) and Air Content (Pressure Method) of Freshly Mixed…, ASTM Committee C09 Next Meeting:, June 22-25, 2014, June Committee Week, Toronto, Ontario, Canada, Technical Contact:, Dennis N. Clute, P.E., USDA – Natural Resources Conservation Service, Fort Worth, Texas, Phone: 817-509-3765; dennis.clute@ftw.usda.gov , 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 #9655
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Events Include USTDA-Sponsored Workshop, Rare Earth Materials Workshop and RoHS Roundtable, ASTM International Committee F40 on Declarable Substances in Materials conducted its biannual standards development meetings on March 10-11, 2014, at Thermo Fisher Scientific’s facilities in Shanghai, China. The meeting included both standards development work and special presentations. ASTM staff and F40 members participated in other events related to declarable substances in China, including…, F40 Meeting, Committee F40 is currently developing three proposed new standards, which were discussed in the Shanghai meeting: • ASTM WK26792, Guide for Identification of Declarable Substances in Polymeric Materials; • ASTM WK21957, Test Method for Identification and Quantification of Lead in Paint and Other Coatings Using Energy Dispersive X-Ray Spectrometry (EDXRF); and • ASTM WK44003, Test Method for…, New Chemical Substance Workshop, Members of F40 participated in the U.S.-China Provisions on the Environmental Administration of New Chemical Substances workshop held in Shanghai on March 12. The workshop was organized by ASTM International in cooperation with the American National Standards Institute on behalf of the U.S. Trade and Development Agency. More than 30 participants from different regions of China, as well as from…, Rare Earth Materials Workshop, On March 13, F40 held a Rare Earth Materials workshop. Gao Lan, secretary general, Standardization Administration of China’s TC229 on Rare Earth Metals, provided an overview of TC229’s work, while Taco van der Marten, chairman of ASTM Subcommittee F40.04 on Rare Earth Materials, described the history and current activities of the subcommittee. The workshop also featured a presentation by Kevin…, RoHS Roundtable, Alyson Fick, ASTM staff manager for F40, spoke at a March 17 event held by the American Chamber of Commerce, China division, in Beijing. The roundtable on restriction of hazardous substances (RoHS) standards provided the opportunity for China-based U.S.-funded companies to understand ASTM standards that consider RoHS issues. Also speaking at that roundtable were Weibing Xing, chief engineer,…, Sinopec Visit, In addition to the F40 meetings and events, Fick, along with ASTM China office representatives Liu Fei and Nancy Hu, visited the polymers and plastic building product division of Sinopec Petroleum in Beijing. This division uses many standards under the jurisdiction of ASTM International Committee D20 on Plastics . The ASTM staff provided an overview of ASTM and D20 to 20 attending engineers. A…, ASTM Committee F40 Next Meeting:, Nov. 12-14, 2014, New Orleans, La., ASTM Staff Contact:, Alyson Fick, Phone: 610-832-9710; afick@astm.org , ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9634
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Committee Now Developing Proposed Specification for Ground Limestone and Other Fines, ASTM International Committee C09 on Concrete and Concrete Aggregates has recently approved a new test method for evaluating the suitability of fine aggregates and other fillers for use in concrete. ASTM C1777 , Test Method for Rapid Determination of the Methylene Blue Value for Fine Aggregate or Mineral Filler Using a Colorimeter, was developed by Subcommittee C09.20 on Normal Weight Aggregates…, ASTM C1777, Methylene Blue Value, C1777 provides a rapid test for laboratory and field use to determine the amount of methylene blue adsorbed by a specimen of fine aggregate or mineral filter “The test in ASTM C1777 will be used to distinguish between harmful and non-harmful fines in concrete aggregate,” says Eric Koehler, vice president, Verifi LLC, and a C09 member. In addition, Koehler notes, ASTM C1777 will be used to qualify…, ASTM WK36906, Ground Limestone Fines, A proposed new standard will reference ASTM C1777. ASTM WK36906 , Specification for Ground Limestone Fines and Other Finely Divided Materials for Use in Concrete, is also being developed by C09.20. Once approved, WK36906 will allow concrete producers to use such products approved as sources of materials to be used in concrete mix specified by architects/engineers and departments of transportation…, ASTM Committee C09 Next Meeting:, June 22-25, 2014, June Committee Week, Toronto, Ontario, Canada, Technical Contacts: (, C1777) Eric Koehler, Verifi LLC, Cambridge, Mass., Phone: 617-498-4354; eric.koehler@verificoncrete.com ; (WK36906) Caroline Talbot, Ph.D., P.E., The Euclid Chemical Co., Cleveland, Ohio, Phone: 985-237-5685; ctalbot@euclidchemical.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 #9627