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Formalizing a method for making a cylindrical specimen of roller-compacted concrete in a gyratory compactor is the primary purpose of a proposed new ASTM International standard. ASTM WK33682 , Test Method for Preparation, Compaction and Density Determination of Roller-Compacted Concrete Specimens by Means of the Superpave Gyratory Compactor, is being developed by Subcommittee C09.45 on Roller-…
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While the use of internally cured concrete in construction is not new, there is now better understanding of the internal curing process and why IC using pre-wetted lightweight aggregate increases concrete durability and service life in an economical and practical way. However, there is not currently a standard for lightweight aggregates for internal curing. ASTM International Committee C09 on…
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Continuing obligations are management procedures for property on which future use moves forward even though residual contamination may remain in the soil or groundwater. A new standard on addressing continuing obligations has now been approved by ASTM International Committee E50 on Environmental Assessment, Risk Management and Corrective Action . ASTM E2790 , Guide for Identifying and Complying…, ASTM Committee E50 Next Meeting:, Oct. 31-Nov. 3, October Committee Week, Tampa, Fla., Technical Contact:, J. Michael Sowinski Jr., Terradex, Carlsbad, Calif., Phone: 760-978-6120; mike@terradex.com, ASTM Staff Contact:, Daniel Smith, Phone: 610-832-9727; dsmith@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8927
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A proposed new ASTM International standard will enable users to determine whether or not a real estate site has a methane hazard that needs to be mitigated. ASTM WK32621 , Practice for Evaluating Potential Hazard Due to Methane in the Vadose Zone, is being developed by Subcommittee E50.02 on Real Estate Assessment and Management , part of ASTM International Committee E50 on Environmental…
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Building energy performance disclosure regulations now exist in a growing number of states, including California and Washington, as well as cities such as Austin, Texas; Seattle, Wash.; and New York, N.Y. These regulatory activities, combined with the economic reality that energy efficient buildings are more attractive to lenders, buyers and tenants, have been the driving forces for a new ASTM…, ASTM Committee E50 Next Meeting:, April 12-14, 2011, April Committee Week, Anaheim, Calif., Technical Contact:, Anthony Buonicore, Buonicore Partners LLC, Old Lyme, Conn., Phone: 800-238-1841; ajb@erdnet.com, ASTM Staff Contact:, Daniel Smith, Phone: 610-832-9727; dsmith@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #8812
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ASTM International Committee C09 on Concrete and Concrete Aggregates is currently developing a proposed standard that addresses bleed stability. ASTM WK28156 , Test Method for Bleed Stability of Cementitious Grout Under Static Pressure, is under the jurisdiction of ASTM International Subcommittee C09.41 on Hydraulic Cement Grouts. When cementitious grouts bleed, mixing water separates from the…, ASTM Committee C09 Next Meeting:, Dec. 6-8, December Committee Week, New Orleans, La., Technical Contact:, Fred Goodwin, BASF Construction Chemicals, Cleveland, Ohio, Phone: 216-839-7009; fred.goodwin@basf.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 #8648
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Climate change assessment and risk management is becoming an increasingly important topic in the field of environmental assessment. An ASTM task group is developing proposed new standards that cover all aspects of climate change assessment. The first standard to be approved by this task group is ASTM E2718 , Guide for Financial Disclosures Attributed to Climate Change. The task group is under the…
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Members of ASTM Committees C09 on Concrete and Concrete Aggregates and C01 on Cement, as well as other interested parties, are invited to join new Subcommittee C09.50 on Risk Management for Alkali Aggregate Reactions. The new subcommittee will develop standards on the mitigation of deleterious alkali-aggregate reactions in concrete. To initiate the launch of C09.50, Committees C01 and C09 are the…
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The rate at which a volume of light non-aqueous phase liquid, such as oil, will flow through a unit width of porous material, such as soil, for a unit gradient is termed LNAPL transmissivity. Being able to measure LNAPL transmissivity is an important aspect of environmental assessment work. It is possible to measure LNAPL transmissivity via several methodologies (for example, baildown tests,…
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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…