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ASTM International Committee D07 on Wood has approved a new standard, ASTM D7746 , Practice for Calculating the Superimposed Load on Wood-Frame Floor-Ceiling Assemblies for Standard Fire Resistance Tests. ASTM D7746, which was developed by Subcommittee D07.05 on Wood Assemblies , will be used in conjunction with other fire test standards. Standards such as ASTM E119, Test Methods for Fire Tests…
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Current members of ASTM International Committees C01 on Cement and C09 on Concrete and Concrete Aggregates , and other interested parties, are invited to join a new C01 subcommittee, C01.98 on Sustainability Assessment. The scope of C01.98 is to support the development and maintenance of standards related to methodologies and metrics for assessing sustainability in the manufacture and use of…
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A watertight septic system ensures its integrity, and demonstrating that integrity is important because such systems have over time become more complex, expensive and critical to both system owners and to the environment. A new ASTM International standard fills a need for an in-field installation test for septic systems. The new standard, ASTM C1719 , Test Method for Installed Precast Concrete…, ASTM Committee C27 Next Meeting:, Dec. 6-7, 2011, December Committee Week, Tampa, Fla., Technical Contact:, Michael R. Miller, Press-Seal Gasket Corp., Fort Wayne, Ind., Phone: 260-918-1626; mmiler@press-seal.com, ASTM Staff Contact:, Joseph Hugo, Phone: 610-832-9740; jhugo@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9008
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A new ASTM International practice provides a standard for preparing a mixture of cement paste that will simulate the shearing experienced by the cement paste in concrete. The new standard, ASTM C1738 , Practice for High-Shear Mixing of Hydraulic Cement Pastes, was developed by Subcommittee C01.22 on Workability , part of ASTM International Committee C01 on Cement . According to Chiara Ferraris,…
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A proposed revision to ASTM International standard ASTM D5456 , Specification for Evaluation of Structural Composite Lumber Products, would add bamboo as a fiber material that can be used in the manufacture of products covered in the standard. ASTM D5456 is under the jurisdiction of Subcommittee D07.02 on Lumber and Engineered Wood Products, part of ASTM International Committee D07 on Wood. ASTM…
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Rapid hardening hydraulic cements are used in a variety of applications in which reduced cementitious contents are desired or early service is needed. Included among these applications are paving, construction, stucco, mortar and block. A newly approved ASTM International standard covering these cements, ASTM C1600/C1600M , Specification for Rapid Hardening Hydraulic Cement, has been developed by…, Type URH, —ultra rapid hardening, for use where ultra high early strength is desired;, Type VRH, —very rapid hardening, for use where very high early strength is desired;, Type MRH, —medium rapid hardening, for use where mid-range rapid hardening, high early strength is desired; and, Type GRH, —general rapid hardening, for use when the higher strength properties of Type VRH or a Type MRH cement is not required. “ASTM C1600 lists minimum requirements for compressive strength, setting time, shrinkage and soundness (autoclave expansion),” says Hicks. “Optional specifications for sulfate expansion, alkali silicate reactions with aggregates, heat of hydration and expansion in water are also…
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A recently approved revision to ASTM International standard C 150 , Specification for Portland Cement, includes three significant technical changes to the document. The changes are part of a joint effort between ASTM and the American Association of State and Highway and Transportation Officials to harmonize C 150 with AASHTO’s standard, M 85, Specification for Portland Cement. C 150 is under the…
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Responding to an increasing level of interest from engineers, regulators and communities, ASTM International Committee C27 on Precast Concrete Products has formed new Subcommittee C27.70 on Precast Concrete Products for Stormwater Management. “New environmental regulations, as well as vastly improved methods of meeting these, have created many new products and practices for stormwater management…
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A new ASTM International subcommittee, D07.08 on Forests, is now soliciting all interested stakeholders to assist in the development of a proposed new guide for forest management systems. The purpose of the subcommittee, under the jurisdiction of ASTM International Committee D07 on Wood, is to promote knowledge, stimulate research and develop standards pertaining specifically to forests. Industry…
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A proposed new ASTM International standard, WK14507 , Guide for Selection of Security Fasteners for Detention and Correctional Facilities, will bring consistency to the use of security fasteners throughout detention/correctional facilities. WK14507 is under the jurisdiction of Subcommittee F33.04 on Detention Hardware, part of ASTM International Committee F33 on Detention and Correctional…