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While machine-placed wet-cast precast concrete retaining wall units have been commercially available since the late 1990s, there has not been an ASTM standard available to cover these products. Now, ASTM International Committee C27 on Precast Concrete Products is working on such a standard. ASTM WK38192 , Specification for Wet-Cast Precast Modular Block Retaining Wall Units, is being developed by…, ASTM Committee C27 Next Meeting:, Dec. 10, 2013, December Committee Week, Jacksonville, Fla., Technical Contact:, Clint Hines, JC Hines and Associates LLC, Anderson, Ohio, Phone: 513-843-6570; clint@jchines.com, ASTM Staff Contact:, Joseph Hugo, Phone: 610-832-9740; jhugo@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9441
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Stormwater hydrodynamic systems are used to remove settable solids that could cause contamination from stormwater runoff. A proposed new ASTM International standard will be used to specify test material with a common target particle size distribution for use in testing HDS systems. The proposed new standard, ASTM WK39909 , Specification for Surrogate Test Solids for Measuring Performance of…, ASTM Committee C27 Next Meeting:, Dec. 10-11, 2013, December Committee Week, Jacksonville, Fla., Technical Contact:, Adam A. Stevens, CONTECH Engineered Solutions, Scarborough, Maine, Phone: 207-885-9740; stevensa@contech-cpi.com, ASTM Staff Contact:, Joseph Hugo, Phone: 610-832-9740; jhugo@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9323
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A continuing interest among road authorities to improve highway safety has led to efforts to improve wet-night visibility of pavement markings, including a new ASTM International standard. ASTM E2832 , Test Method for Measuring the Coefficient of Retroreflected Luminance of Pavement Markings in a Standard Condition of Continuous Wetting (RL-2), was developed by Subcommittee E12.10 on…, ASTM Committee E12 Next Meeting:, Jan. 30-31, 2013, January committee week, Jacksonville, Fla., Technical Contact:, Paul Carlson, Texas Transportation Institute, College Station, Texas, Phone: 979-845-6004; paul-carlson@tamu.edu, ASTM Staff Contact:, Thomas O’Toole, Phone: 610-832-9739; totoole@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9243
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While there are many commercially available stormwater treatment products currently on the market, there is no universal testing standard that would allow the performance of these products to be accurately compared. A proposed new ASTM International standard will fill this need, providing a testing method for stormwater treatment products that use filtration as a primary treatment process. ASTM…
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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 watertight septic system ensures its integrity, and demonstrating that integrity is important because such systems have over time become more complex, expensive and critical to both system owners and to the environment. A new ASTM International standard fills a need for an in-field installation test for septic systems. The new standard, ASTM C1719 , Test Method for Installed Precast Concrete…, ASTM Committee C27 Next Meeting:, Dec. 6-7, 2011, December Committee Week, Tampa, Fla., Technical Contact:, Michael R. Miller, Press-Seal Gasket Corp., Fort Wayne, Ind., Phone: 260-918-1626; mmiler@press-seal.com, ASTM Staff Contact:, Joseph Hugo, Phone: 610-832-9740; jhugo@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9008
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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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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 request from the United States Navy was the impetus behind the development of a new ASTM International standard, E2630 , Test Method for Luminance Ratio of a Fluorescent Specimen Using a Narrow Band Source. The new standard was developed by Subcommittee E12.05 on Fluorescence, part of ASTM International Committee E12 on Color and Appearance. Richard Harold, consultant, Color and Appearance…
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First generation gonioapparent colorants are materials pigmented with metal flakes that change lightness as illumination angles change. Used heavily in automotive coatings, the first generation of gonioapparent materials was covered by ASTM International standard E2194 , Practice for Multiangle Color Measurement of Metal Flake Pigmented Materials, first published in 2003. Now, a second generation…