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Precast reinforced concrete box sections are proving to be a versatile means for the development of infrastructure. The use of segmental box sections is now covered in an ASTM standard, ASTM C1786 , Specification for Segmental Precast Reinforced Concrete Box Sections for Culverts, Storm Drains and Sewers Designed According to AASHTO LRFD. The American Association of State Highway and…, Technical Contact:, Josiah W. Beakley, American Concrete Pipe Association, Irving, Texas, tel +1.972.894.2906; jbeakley@concrete-pipe.org, ASTM Staff Contact:, Diane Lake, tel +1.610.832.9661; dlake@astm.org, ASTM PR Contact:, Barbara Schindler, tel +1.610.832.9603; bschindl@astm.org Release #9745
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Cook-and-hold ovens allow users to cook food at one temperature and then hold it at a preprogrammed lower temperature. The kitchen staffs at steakhouses, schools and hotels all cook with such ovens. A new ASTM International standard, ASTM F3051 , Test Method for Performance of Cook-and-Hold Ovens, provides a test to gauge oven energy usage. “Since many cook-and-hold units run overnight, end users…, ASTM Committee F26 Next Meeting:, Oct. 7-8, 2014, October Committee Week, New Orleans, La., Technical Contact:, Andre Saldivar, SCE Foodservice Technology Center, Irwindale, Calif., Phone: 626-812-7558; andre.saldivar@sce.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 Release #9672
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Since the late 1970s, precast box sections have become an important component in the construction of culverts, storm drains and sewers, but there has not been a comprehensive standard for the installation of such sections. A new ASTM International standard fills this gap. ASTM C1675, Practice for Installation of Precast Reinforced Concrete Monolithic Box Sections for Culverts, Storm Drains and…, Technical Contact:, Roman Selig, Hamilton Kent LLC, Birmingham, Ala., Phone: 205-910-0690; roman.selig@hamiltonkent.com, ASTM Staff Contact:, Diane Trinsey, Phone: 610-832-9661; dtrinsey@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9243
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Load and resistance factor design methodology developed by the American Association of State Highway and Transportation Officials plays a key role in a proposed ASTM standard on the design of culverts and storm drains. ASTM WK38166 , Specification for Manufacture of Precast Reinforced Concrete Three-Sided Structures for Culverts and Storm Drains Designed According to AASHTO LRFD, is being…, Technical Contact:, Balaram K. Singh, P.E., Michigan Department of Transportation, Lansing, Mich., Phone: 517-335-2174; singhb@michigan.gov, ASTM Staff Contact:, Diane Trinsey, Phone: 610-832-9661; dtrinsey@astm.org, ASTM PR Contact, : Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9311
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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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The U.S. Department of Defense, as well as architects, mechanical engineers and food service consultants who design commercial kitchens, will be the primary users of a proposed new standard, WK25126 , Specification for Recirculating Hood System for Cooking Appliances. WK25126 is being developed by Subcommittee F26.07 on Commercial Kitchen Ventilation, part of ASTM International Committee F26 on…, ASTM Committee F26 Next Meeting:, April 20-21 , April Committee Week, St. Louis, Mo., Technical Contact:, Richard Swierczyna, Architectural Energy Corp., Wood Dale, Ill., Phone: 630-860-1439, rswierczyna@archenergy.com, ASTM Staff Contact:, Christine DeJong, Phone: 610-832-9736, cdejong@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #844 4/Dec2009
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ASTM International Committee C13 on Concrete Pipe has approved a new standard that covers flexible joints for concrete box sections using rubber gaskets for leak resistant joints. Subcommittee C13.08 on Joints for Precast Concrete Structures developed ASTM C1677 , Specification for Joints for Concrete Box, Using Rubber Gaskets. “This specification will provide a uniform minimum level of…
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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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ASTM International Committee F26 on Food Service Equipment will hold a free webinar on operating costs of food service equipment on Sept. 17 from 2 to 3:30 p.m. EST. Based on the ASTM standard F2687 , Practice for Life Cycle Cost Analysis of Commercial Food Service Equipment, the webinar will focus on the two new free tools that have been developed by food industry experts to project the total…