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A large and diverse set of manufactured materials are in powdered form at one stage or another. No matter what the material is, from cement to metered dose inhaler ingredients, product performance is related to particle size distribution. “The strength of concrete is related to the fineness of the cement powder used, but the danger with very fine grades is excessive heating on setting,” says…, ASTM Committee E29 Next Meeting:, Oct. 6-7, 2014, October Committee Week, New Orleans, La., Technical Contact:, Alan F. Rawle, Ph.D., Malvern Instruments, Westborough, Mass., Phone: 508-768-6434; alan.rawle@malvern.com , ASTM Staff Contact:, Katerina Koperna, Phone: 610-832-9728; kkoperna@astm.org , ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9576
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A newly revised ASTM terminology standard reflects the latest technological advances in particle size analysis (standard test sieves) and particle separation (screening media). ASTM E1638 , Terminology Relating to Sieves, Sieving Methods and Screening Media, was developed by Subcommittee E29.01 on Sieves, Sieving Methods and Screening Media , part of ASTM International Committee E29 on Particle…, ASTM Committee E29 Next Meeting:, May 1-2, 2013, in conjunction with B09 May meeting, Ft. Lauderdale Beach, Fla., Technical Contact:, Kenneth H. Beyer, American Wire Cloth Institute, Elizabeth, N.J., Phone: 908-688-4600; ken@uniquewire.com, ASTM Staff Contact:, Katerina Koperna, Phone: 610-832-9728; kkoperna@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9290
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In a quest for lighter, more crash-resistant and fuel-efficient vehicles, the automobile and steel industries are developing steel sheets that have higher alloy content, and thus more complex hardening mechanisms, than sheets currently being used. The sheets, known generally as advanced high-strength steels, are covered by a new ASTM International standard, ASTM A1079 , Specification for Steel…, ASTM Committee A05 Next Meeting:, Nov. 11-13, November Committee Week, Atlanta, Ga., Technical Contact:, Gary Dallin, GalvInfo Center, International Zinc Association, Burlington, Ontario, Canada, Phone: 905-315-7443; gdallin@cogeco.ca, ASTM Staff Contact:, Kristy Straiton, Phone: 610-832-9640; kstraiton@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9304
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A new ASTM International standard that will help ensure the accurate use of micrometers in the measurement of a type of steel sheet has been developed and approved by ASTM International Committee A05 on Metallic-Coated Iron and Steel Products . ASTM A1073/A1073M , Practice for Using Hand Micrometers to Measure the Thickness of Nonmetallic and Metallic-Coated Steel Sheet, is under the…, ASTM Committee ASTM Committee A05 Next Meeting:, Nov. 11-13, 2012, November Committee Week, Atlanta, Ga., Technical Contact:, Herbert W. Koch, Harris Steel Co., Chicago, Ill., Phone: 708-656-5500; hkoch@harrissteelco.com, ASTM Staff Contact:, Kristy Straiton, Phone: 610-832-9640; kstraiton@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9254
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Current members of ASTM International Committees C01 on Cement and C09 on Concrete and Concrete Aggregates , and other interested parties, are invited to join a new C01 subcommittee, C01.98 on Sustainability Assessment. The scope of C01.98 is to support the development and maintenance of standards related to methodologies and metrics for assessing sustainability in the manufacture and use of…
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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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A new ASTM International standard covers a special grade of industrial woven wire cloth called filter cloth for general filtration, including the separation of solids from fluids. ASTM E2814 , Guide for Industrial Woven Wire Filter Cloth, was developed by Subcommittee E29.01 on Sieves, Sieving Methods and Screening Media , part of ASTM International Committee E29 on Particle and Spray…, ASTM Committee E29 Next Meeting:, Oct. 31-Nov. 1, 2011, October Committee Week, Tampa, Fla., Technical Contact:, Ken Beyer, Unique Wire Weaving Co., Hillside, N.J., Phone: 908-688-4600; ken@uniquewire.com, ASTM Staff Contact:, Christine Sierk, Phone: 610-832-9728; csierk@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8934
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Owners and specifiers of steel building projects will be the primary users of a new ASTM International standard, ASTM A1068 , Practice for Life-Cycle Cost Analysis of Corrosion Protection Systems on Iron and Steel Products. The new standard was developed by Subcommittee A05.13 on Structural Shapes and Hardware Specifications, part of ASTM International Committee A05 on Metallic-Coated Iron and…
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Subcommittee A05.13 on Structural Shapes and Hardware Specifications is currently working on proposed new standards that would be used by engineers and architects who design with steel fabrications. These proposed standards will be used to evaluate the costs of steel construction over the lifetime of a project and to compare different corrosion protection systems on their impact to this lifetime…
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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…