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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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Interested parties are invited to join in the development of a new proposed standard being developed by ASTM International Committee E11 on Quality and Statistics . ASTM WK32565 , Guide for the Use of Non-Parametric Statistical Methods, is under the jurisdiction of Subcommittee E11.10 on Sampling/Statistics . According to Stephen Luko, statistician, Hamilton Sundstrand, Shared Engineering…, ASTM Committee E11 Next Meeting:, Oct. 26-28, 2011, ASTM International Headquarters, West Conshohocken, Pa., Technical Contact:, Stephen N. Luko, Hamilton Sunstrand, Shared Engineering Services, Windsor Locks, Conn., Phone: 860-654-3447; stephen.luko@hs.utc.com, ASTM Staff Contact:, Christine Sierk, Phone: 610-832-9728; csierk@astm.org Release #8978
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Three-dimensional laser scanning is a maturing technology that holds great promise for capturing highly accurate information about an object or scene by collecting millions of dense measurements very quickly. ASTM International Committee E57 on 3D Imaging Systems is developing new standards for this technology, including ASTM E2807 , Specification for 3D Imaging Data Exchange, Version 1.0. ASTM…
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A new task group within ASTM Committee E57 on 3D Imaging Systems plans to develop standards on position and orientation (pose) determination that could help increase productivity and enhance the global competitiveness of the U.S. manufacturing industry. The task group, under the jurisdiction of Subcommittee E57.02 on Test Methods, is currently working on its first proposed new standard, ASTM…
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Measurement systems analysis is an important topic in statistics and quality for engineering, manufacturing, laboratory practice and business process applications. A new ASTM International standard, ASTM E2782 , Guide for Measurement Systems Analysis (MSA), covers many core issues of MSA. ASTM E2782 was developed by Subcommittee E11.20 on Test Method Evaluation and Quality Control, under the…
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Three-dimensional laser scanning is an emerging technology that holds great promise for capturing dimensionally accurate information about an object or scene by collecting millions of dense measurements very quickly. ASTM International Committee E57 on 3D Imaging Systems is developing new standards for this technology, including ASTM E2761, Specification for 3D Imaging Data Exchange. ASTM E2761,…
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Three dimensional image system technology is now used in a wide variety of industries, including construction, mapping, manufacturing, mining and forensics. For all of these industries, safe usage of 3D imaging equipment is a top priority. However, until the approval of a new ASTM International standard, no safety guidelines specifically oriented toward 3D image system technology existed. The…
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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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With the proposed new standard, WK11023 , Practice for Life and Reliability Testing Based on the Exponential Distribution, ASTM International Committee E11 on Quality and Statistics is continuing its program of preserving U.S. government military standards on acceptance sampling. WK11023 is an adaptation of the DoD quality control and reliability handbook document H-108, Sampling Procedures 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…