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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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Any organization that owns and uses a variety of equipment must find ways to identify it and track its movement. A new standard and a proposed new standard being developed by ASTM International Committee E53 on Property Management Systems focus on these aspects of equipment ownership. The new ASTM standard, E2606 , Practice for Receipt Notification as a Result of Tangible Property Movement, and…
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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 E53 on Property Management Systems has begun developing new standards to address the beginning of a challenging new era for asset managers – the era of lost laptops. Understanding how organizations reached this point – where entities are losing an increasing number of sensitive assets such as computers, some with sensitive information stored in the memory devices – is…
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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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Asset budgets are often the third largest line item (after personnel and information technology) for many organizations. Because of this, asset managers in both the public and private sectors need to present compelling arguments and demonstrate strategic value to core missions in framing asset decisions. With this in mind, ASTM International Committee E53 on Property Management Systems has more…
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Anyone who has ever lost time searching for a set of keys that simply are not where they’re supposed to be will appreciate the larger-scale, though similar concept behind E 2499 , Standard Practice for Classification of Equipment Physical Location Information, a new standard developed by ASTM International Committee E 53 on Property Management Systems. The goal of the standard, which is under the…
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ASTM International standards will play an important role in the National Property Management Associations National Education Seminar, to be held from Aug. 25-Sept. 1, in Minneapolis, Minn. Standards under the jurisdiction of ASTM Committee E53 on Property Management Systems will be the subject of a dedicated track at NES that will include several individual seminars, as well as breakout…
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If you are a user of ASTM B 456, Specification for Electrodeposited Coatings of Copper Plus Nickel Plus Chromium and Nick Plus Chromium, ASTM International Committee B08 on Metallic and Inorganic Coatings would like to hear from you. B 456 is under the jurisdiction of Subcommittee B08.08.03 on Decorative Coatings. "Subcommittee B08.08.03 has received reports that some users are experiencing…
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After a 35-year-absence, the natural cement industry is being revived and, along with it, a long-withdrawn ASTM International standard. Until it closed in 1970, the Century Cement Company in Rosendale, N.Y. was the last company to manufacture natural cement. Up to that point, Rosendale had been the center of the industry, the source of more than half of all natural cement produced in the U.S.…