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Subjects Include Aggregate Resistivity, Lightweight Aggregates, Methacrylate Bonding Systems and Semi-Adiabatic Calorimetry The following four proposed new standards are among those currently being developed by subcommittees under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates. Subject matter covered by these standards includes aggregate resistivity, lightweight…
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ASTM International Committee F15 on Consumer Products continues to address emerging hazards associated with furniture tipover with its recently revised standard, ASTM F2057 , Safety Specification for Chests, Door Chests, and Dressers. ASTM F2057 , under the jurisdiction of Subcommittee F15.42 on Furniture Safety, is intended to reduce injuries and deaths of children from hazards associated with…
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ASTM Pervious Concrete Subcommittee Developing Proposed Standard for Sustainable Mixture ProportionsOnce approved, a proposed new ASTM standard will aid concrete producers in developing sustainable and durable mixture proportions for pervious concrete. The proposed new standard, WK23367 , Test Method for Evaluating the Surface Durability Potential of a Pervious Concrete Mixture, is being developed by Subcommittee C09.49 on Pervious Concrete, part of ASTM International Committee C09 on Concrete…
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A proposed new ASTM International standard, ASTM WK22233 , Test Method for Indication of Concrete’s Ionic Conductivity, describes a five-minute nondestructive test that has the potential to replace a destructive six-hour test requiring several hours of preparation time. The proposed standard is being developed by Subcommittee C09.66 on Concrete’s Resistance to Fluid Penetration, part of ASTM…
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Shrinkage that occurs during the drying process is a major cause of cracking in concrete. However, application of shrinkage-reducing admixtures in the field has been yielding positive results, and engineers have realized that admixtures can mitigate cracking. A new ASTM standard currently being developed by Subcommittee C09.23 on Chemical Admixtures will set minimum standards for an admixture to…
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In its continuing efforts to reflect the latest issues in toy safety and to deal with emerging hazards, ASTM International Committee F15 on Consumer Products has approved revisions to ASTM F963 , Consumer Safety Specification for Toy Safety. Changes made to the standard include revisions to the section on ingestion of magnetic components in toys. ASTM F963 , under the jurisdiction of Subcommittee…
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Under new federal legislation that takes effect today, all toys sold in the United States must meet the safety requirements of ASTM F963 , Standard Consumer Safety Specification for Toy Safety. This new measure for protecting children from unsafe toys, which won strong bipartisan approval in Congress after nearly a year of hearings and debate, is part of the Consumer Product Safety Improvement…
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Because of its porous nature, pervious concrete cannot be tested using standards developed for traditional concrete. In order to fill this need, ASTM International Committee C09 on Concrete and Concrete Aggregates is developing a series of proposed test methods specific to pervious. The first of these proposed standards, ASTM C1688/C1688M , Test Method for Density and Void Content of Freshly…
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Two new calibration standards for use with X-ray fluorescence equipment in the chemical analysis of hydraulic cement are now available from the Cement and Concrete Reference Laboratory (CCRL). The new standards are designated Portland Cements 167 and 168 and are vacuum-sealed to prevent moisture uptake. Robin Haupt, supervisor, CCRL proficiency sample program, says that the two new cements were…
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ASTM International Committee F15 on Consumer Products is currently developing a proposed new standard at the request of the Consumer Product Safety Commission. The proposed standard, WK20641 , Specification for Cautionary Labeling of Inflatable Air Mattresses, is under the jurisdiction of Subcommittee F15.63 on Inflatable Air Mattresses. Since 2002, there have been 16 fatalities (many of them…