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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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Test Method Covers Inductively Coupled Plasma Atomic Emission Spectrometry, A new ASTM International standard will help users properly prepare and analyze various nickel-based alloy samples by inductively coupled plasma emission spectrometry. The standard, ASTM E2594 , Test Method for Analysis of Nickel Alloys by Inductively Coupled Plasma Atomic Emission Spectrometry (Performance-Based Method), will assist users in preparing sample and calibration solutions and with…
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Advancing gas analysis technology is leading to the development of a proposed new ASTM International standard, WK22331 , Test Method for Simultaneous Determination of Oxygen, Nitrogen and Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique. Analyzers are now available that can simultaneously test titanium and titanium alloys for oxygen, nitrogen and hydrogen. This…
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Accepted Fire Prevention Measure to Benefit Citizen Safety Seeking to prevent accidental death and damage to property related to untended cigarettes, Finland has proposed that all cigarettes sold in the country be tested to assess their likelihood to cause fire in bedding or upholstered furniture. The regulatory proposal specifies the use of ASTM E2187 - an international standard developed by…
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All interested parties are invited to join in the ongoing development of a proposed new standard, WK19982 , Test Method for ICP Analysis of Calcium and Magnesium in Magnesium Ferrosilicon. WK19982 is being developed by Subcommittee E01.01 on Iron, Steel and Ferroalloys, part of ASTM International Committee E01 on Analytical Chemistry for Metals, Ores and Related Materials. According to Robert…
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A new Pennsylvania law to help prevent smoking-related fires will require that cigarettes sold in the state perform well when tested using ASTM International standard E2187 , Test Method for Measuring the Ignition Strength of Cigarettes. "Careless smoking is one of the leading causes of fires, killing hundreds and injuring thousands every year," said Rep. Tim Solobay, a volunteer firefighter who…
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A proposed new ASTM International standard, WK16997 Test Method for Determining the Heat Release of Materials of Low Combustibility Using a Bench Scale Oxygen Consumption Calorimeter, will be used as a fire response test for products and materials that are difficult to ignite and have relatively low rates of heat release. The proposed standard is being developed by Subcommittee E05.23 on…
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Responding to requests from representatives of the copper industry, ASTM International Committee E01 on Analytical Chemistry for Metals, Ores and Related Materials has developed a new standard, E2575 , Test Method for Determination of Oxygen in Copper and Copper Alloys. The new standard is under the jurisdiction of Subcommittee E01.05 on Cu, Pb, Zn, Cd, Sn, Be, Their Alloys and Related Metals. …
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A proposed new standard currently being developed by ASTM International Committee E05 on Fire Standards will establish a test protocol for assessing fire performance of decks and other horizontal exterior structures where combustibles beneath the structure can ignite. The proposed standard, WK17025 , Test Method for Evaluating the Under-Deck Fire Test Response of Deck Structures, is under the…
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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…