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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 type of lime that has been used in construction since ancient Roman times is now covered by an ASTM International standard. ASTM International Committee C07 on Lime has approved ASTM C1707 , Specification for Pozzolanic Hydraulic Lime for Structural Purposes. The new standard is under the jurisdiction of Subcommittee C07.02 on Specifications and Guidelines. According to Margaret Thomson, the…
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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 proposed new ASTM International standard will provide a method for a comparative evaluation of limestone sources available for use in flue gas desulfurization (FGD) applications. The proposed standard, WK20129 , Test Method for Evaluating Limestone for Use in Wet Flue Gas Desulfurization Applications by Reactivity, is being developed by Subcommittee C07.05 on Chemical Tests, part of ASTM…
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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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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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A proposed new standard currently being developed by ASTM International Committee F01 on Electronics will prove to be useful to the tantalum sputtering target industry. The proposed standard, WK9490, Test Method for Reporting Crystallographic Orientation of Sputtering Target Materials, is under the jurisdiction of Subcommittee F01.17 on Sputter Metallization. "The tantalum sputtering target…