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A proposed ASTM standard could help engineers and architects increase the strength and durability of concrete by using colloidal silica. Specifically, according to ASTM member Jon Belkowitz, “this new standard could increase the durability of hydraulic cement concrete to resist the nature of physical and chemical attack over time.” Belkowitz, head of research and development at Intelligent…, ASTM Committee C09 on Concrete and Concrete Aggregates Next Meeting:, June 26-29, 2016, June 2016 Committee Week, Chicago, Ill., Media Inquiries:, Dan Bergels, tel +1.610.832.9602; dbergels@astm.org, Technical Contact:, Jon Belkowitz, Intelligent Concrete, Elbert, Colo. tel +1.732.618.2572; jon@intelligent-concrete.com, ASTM Staff Contact:, W. Scott Orthey, tel +1.610.832.9730; sorthey@astm.org Release #10061
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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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ASTM International Committee F38 on Unmanned Aircraft Systems has approved seven new standards that cover all major facets of small unmanned aircraft systems operations, including design, construction, operation and maintenance requirements. The seven new ASTM standards, written for all sUAS that are permitted to operate over a defined area and in airspace defined by a nation’s governing aviation…, ASTM F2908, Specification for Aircraft Flight Manual (AFM) for a Small Unmanned Aircraft System (sUAS), − ASTM F2908 defines minimum requirements for the aircraft flight manual, which provides guidance to owners, mechanics, pilots, crew members, airports, regulatory officials and aircraft and component manufacturers who perform or provide oversight of sUAS flight operations. •, ASTM F2909, Practice for Maintenance and Continued Airworthiness of Small Unmanned Aircraft Systems (sUAS), − ASTM F2909 establishes a practice for the maintenance and continued airworthiness of sUAS. Requirements for continued airworthiness, inspections, maintenance and repairs/alterations are included. •, ASTM F2910, Specification for Design and Construction of a Small Unmanned Aircraft System (sUAS), − ASTM F2910 defines the design, construction and test requirements for sUAS. In addition to general requirements, ASTM F2910 covers requirements for structure, propulsion, propellers, fuel and oil systems, cooling, documentation and other key areas. •, ASTM F2911, Practice for Production Acceptance of Small Unmanned Aircraft System (sUAS), − ASTM F2911 defines production acceptance requirements for sUAS. Requirements covered include several aspects of production, system level production acceptance, quality assurance and documentation. •, ASTM F3002, Specification for Design of the Command and Control System for Small Unmanned Aircraft Systems (sUAS), − ASTM F3002 provides a consensus standard in support of an application to a nation’s governing aviation authority to operate an sUAS for commercial or public use. The standard focuses on command and control (C2) links, including a diagram of a C2 system and general requirements for C2 system components. •, ASTM F3003, Specification for Quality Assurance of a Small Unmanned Aircraft System (sUAS), − ASTM F3003 defines quality assurance requirements for design, manufacture and production of small unmanned aircraft systems. Guidance is given to sUAS manufacturers for the development of a quality assurance program. •, ASTM F3005, Specification for Batteries for Use in Small Unmanned Aircraft Systems (sUAS), − ASTM F3005 defines requirements for battery cells used in sUAS. Mechanical design and safety, and electrical design battery maintenance are primary battery-related areas that are covered. “The introduction of these standards developed by F38 will help to provide a safe and appropriate path for near-term routine sUAS operations in airspace systems of the United States and other countries,” says…, Technical Contact:, Theodore J. Wierzbanowski, Phone: 626-429-8864; wierzbanowski@uasinthenas.com, ASTM Staff Contact:, Stephen Mawn, Phone: 610-832-9726; smawn@astm.org , ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9636