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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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As interest in energy efficiency and green buildings continues to build, it is easy to imagine that property due diligence by prospective buyers and lessees will begin to include such environmental considerations, which can impact property values and rental rates. This is particularly true in light of legislation such as California’s Assembly Bill 1103, a new law that became effective Jan. 1 and…, ASTM WK24707, , Guide for Building Energy Performance Disclosure, is under the jurisdiction of Subcommittee E50.02 on Real Estate Assessment and Management. ASTM WK24707 will be used by professionals conducting due diligence for prospective property purchasers and lessees. “It is anticipated that energy disclosure obligations will be incorporated into the traditional legal obligations of landlords and sellers…
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Six months after the spring 2008 publication of ASTM standard E2600 , Practice for Assessment of Vapor Intrusion into Structures on Property Involved in Real Estate Transactions, the task group that developed it surveyed users to receive feedback on the new standard. According to Anthony Buonicore, CEO of the Buonicore Group and chair of the vapor intrusion task group, the survey results have led…
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Subjects Include Vented Construction Systems, Furnace Exposure and Tunnel Fire Resistance, Subcommittee E05.11 on Fire Resistance, part of ASTM International Committee E05 on Fire Standards, is currently developing a number of proposed standards, including the following three test methods on vented construction systems, furnace exposure on test samples and tunnel fire resistance. All parties interested in working on fire resistance standards are encouraged to join in the activities of…, Vented Construction, Understanding how construction systems will perform in the earliest moments of a fire is crucial. A proposed new ASTM standard, WK22660 , Test Method for Evaluating Fire Performance of Vented Construction, will provide tests for evidence on how vented construction systems are affected by the first five minutes of a fire and will be used to complement existing fire testing methods test results “…, Furnace Exposure, Fire test laboratories and fire protection engineers will be the primary users of proposed new standard ASTM WK23795 , Test Method for Measuring the Uniformity of Furnace Exposure on Test Samples. The proposed standard provides general principles for measuring the uniformity of furnace exposure on samples tested in accordance with the following standards: - ASTM E119 , Test Methods for Fire…, Tunnel Fire Resistance, Fires in tunnels can reach temperatures as high as 2,500°F [1371°C], but current standards that deal with building fires provide for a maximum temperature of 2,000°F [1093°C] and are not specific to tunnels. A proposed new standard, ASTM WK23821 , Test Methods for Tunnel Fire Resistance, will be developed with the special considerations of tunnel fires in mind. According to Barry Badders, manager…
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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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The U.S. Environmental Protection Agency has determined that the 2008 revision to an ASTM International standard describing the environmental assessment needs of parties involved in the acquisition of forestland and rural properties is now compliant with the agency’s All Appropriate Inquiries Rule (40 CFR Part 312, Standards and Practices for All Appropriate Inquires). The EPA decision came in a…
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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…