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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 new ASTM subcommittee seeks to acknowledge the ongoing advances being made in the field of nanostructured inorganic coatings. B08.16 on Nanostructured Coatings, part of ASTM International Committee B08 on Metallic and Inorganic Coatings, is currently developing its first proposed standard, ASTM WK29468 , Specification for Galvanic Protection of Steel Using a Nanostructured Coating of 95 % Zinc…
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A proposed new standard being developed by ASTM International Committee F30 on Emergency Medical Services will be useful to medical equipment manufacturers, certification agencies and care providers, with patients being the ultimate beneficiaries. The proposed new standard, ASTM WK27973 , Specification for Environmental Performance of Medical Equipment for Use on Fixed and Rotary-Wing Aircraft,…, Technical Contact:, Pete Chambers, Marketing Assessment Inc., Phone: 703-673-9003; pete@marketingassessment.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 #8671/Sept2010
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ASTM International Committee F08 on Sports Equipment and Facilities is focusing on elliptical equipment in its two latest approved standards. Both F2810, Specification for Elliptical Trainers, and ASTM F2811 , Test Methods for Evaluating Design and Performance Characteristics of Elliptical Trainers, are under the jurisdiction of Subcommittee F08.30 on Fitness Products. Harvey Voris, vice…, ASTM Committee F08 Next Meeting:, Nov. 16-19, November Committee Week, San Antonio, Texas, Technical Contact:, Harvey Voris, Paramount Fitness Corp., Los Angeles, Calif., Phone: 323-721-2121; hvoris@paramountfitness.com, ASTM Staff Contact:, Christine Basile, Phone: 610-832-9728; cbasile@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8672/Sept2010
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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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Mass casualty events, including both natural disasters and man-made events, subject caregivers, patients and medical equipment to environmental extremes. A new standard being developed by ASTM International Committee F30 on Emergency Medical Services provides guidance for how medical equipment is expected to perform under the severe conditions of a mass casualty event. The proposed standard, ASTM…
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Two proposed new ASTM International standards cover the manufacture and installation of concrete floor tile units for application as exterior and interior flooring. WK17790 , Specification for Concrete Floor Tile, and WK17791 , Guide for Installation Methods for Concrete Floor Tile Products, are both being developed by ASTM International Committee C15 on Manufactured Masonry Units. According to…
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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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ASTM International Committee B08 on Metallic and Inorganic Coatings has recently approved a revision of one of its most important standards, B 633 , Specification for Electrodeposited Coatings of Zinc on Iron and Steel. B 633 is under the jurisdiction of Task Group B08.08.04 on Soft Metals, which is part of Subcommittee B08.08 on Metallic Coatings. Zinc coatings are used to provide a sacrificial…
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ASTM International Committee C15 on Manufactured Masonry Units has created a new subcommittee, C15.11 on Adhered Manufactured Stone Masonry Veneer. The purpose of C15.11 is to develop and maintain product specifications and installation guidelines for adhered manufactured stone masonry veneer. According to Brenda Harris, chair of the new subcommittee, adhered manufactured stone masonry veneer…