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A new ASTM International standard provides information and guidelines for the selection and installation of drainage systems media that are used with waterproofing systems. ASTM D7492/D7492M , Guide for Use of Drainage System Media with Waterproofing Systems, was developed by Subcommittee D08.22 on Waterproofing and Dampproofing Systems, part of ASTM International Committee D08 on Roofing and…
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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 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 International standard will provide how-to information to consultants and contractors for assessing the condition of a roof to be coated and recommendations on how to prepare a roof for a coating. The new standard, ASTM D7120 , Guide for Evaluation and Preparation of Roof Membranes for Coating Application, was developed by Subcommittee D08.20 on Roofing Membrane Systems, part of ASTM…, ASTM Committee D08 Next Meeting:, June 12-15, 2011, June Committee Week, Anaheim, Calif., Technical Contact:, Carter Slusher, Firestone Building Products, Indianapolis, Ind., Phone: 317-575-7117; slushercarter@firesonebp.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 #8721
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Non-destructive moisture meters are now widely used in determining moisture levels in concrete, gypsum concrete and other types of floor slabs. A new ASTM International standard qualifies the types of meter suitable for this purpose and provides guidelines for how, where and when such moisture meters are used and what limitations exist. The new standard, ASTM F2659 , Guide for Preliminary…, ASTM Committee F06 Next Meeting:, Nov. 10-11, New Orleans, La., Technical Contact:, Sean Fallon, Dublin, Ireland, Phone: +011-353-1-285-1861; seanfallon@ireland.com, ASTM Staff Contact:, Stephen Mawn, Phone: 610-832-9726; smawn@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #870/Oct2010
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The ongoing focus on sustainability in construction has contributed to greater interest in vegetative, or green, roof systems, in which traditional roofing material is replaced or supplemented with vegetation. A proposed new ASTM International standard will address an important aspect of designing this kind of roofing: determining the proper roofing and waterproofing membrane for a particular…
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A newly approved ASTM International standard will advance the cause of architectural preservation. The new standard, ASTM C1713 , Specification for Mortars for the Repair of Historic Masonry, was developed by Subcommittee C12.03 on Specifications for Mortars, part of ASTM International Committee C12 on Mortars and Grouts for Masonry Units. John Wathne, structural engineer and president of…
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Special considerations need to be made for flooring in multi-purpose rooms, particularly those in child care buildings, elementary schools and long-term care facilities. ASTM International Committee F06 on Resilient Floor Coverings is currently developing a proposed new standard for such flooring. WK24836 , Specification for Active Area, Multipurpose Flooring, is under the jurisdiction of…
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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…