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ASTM International Committee E29 on Particle and Spray Characterization has recently approved an extensive revision of ASTM standard E11 , Specification for Wire Cloth and Sieves for Testing Purposes. The revision will lead to better control of the quality of sieve cloths and test sieves. ASTM E11 is under the jurisdiction of Subcommittee E29.01 on Sieves, Sieving Methods and Screening Media.…
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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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Sieve manufacturers produce testing sieves using various sizes of wire cloth, per ASTM International standard E 11, Specification for Wire Cloth and Sieves for Testing Purposes. They also use ASTM standards E 161, Specification for Precision Electroformed Sieves, and E 323, Specification for Perforated-Plate Sieves for Testing Purposes when producing sieves from perforated plate. These…
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After a 35-year-absence, the natural cement industry is being revived and, along with it, a long-withdrawn ASTM International standard.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.…
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A new test method developed by ASTM International Committee C01 on Cement provides information about the behavior of cement that can be used in the process of selecting cementing materials for specific applications. The standard, C 1608, Test Method for Chemical Shrinkage of Hydraulic Cement Pastes, is under the jurisdiction of Subcommittee C01.31 on Volume Change. Test Method C 1608 was…