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ASTM proposes new road and paving materials standard.

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February 5, 2010 - Proposed ASTM International standard, WK26816, Test Method for Overlay Test, will address cracking that happens during bituminous mixture design phase. It is being developed by Subcommittee D04.20 on Mechanical Tests of Bituminous Mixtures. Standard will improve test method with unified sample preparation procedure and will also address other variables within test. Primary users will be state highway agencies, paving contractors, and developers of technology associated with paving materials.

Proposed New ASTM Road and Paving Materials Standard to Focus on Overlay Test for Cracking


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ASTM International
100 Barr Harbor Dr., Box C700
West Conshohocken, PA, 19428-2959
USA



Press release date: February 2, 2010

W. CONSHOHOCKEN, Pa. - A proposed new ASTM International standard, WK26816, Test Method for Overlay Test, will address cracking that happens during the bituminous mixture design phase. The proposed new standard is being developed by Subcommittee D04.20 on Mechanical Tests of Bituminous Mixtures, part of ASTM International Committee D04 on Road and Paving Materials.

According to Richard Steger, Road Science LLC, and chairman of D04.20, an overlay tester was developed by the Texas Transportation Institute and the Texas Department of Transportation to cover the cracking issue. Cracking is one of the most prevalent distresses that occur in bituminous pavements.

"Texas DOT has a test procedure, but since multiple agencies and companies are using the device, D04.20 members felt that it would be a good idea to create an ASTM International standard that will improve the test method by providing a unified sample preparation procedure as well as address other variables within the test," says Steger.

Steger notes that state highway agencies, paving contractors and companies that develop technology associated with paving materials will be the primary users of the proposed new standard.

All interested parties are invited to join in the development of WK26816, particularly anyone with an overlay test device who would be willing to participate in a round robin study that will be used in creating a precision and bias statement for the proposed standard.

ASTM International welcomes and encourages participation in the development of its standards. For more information on becoming an ASTM member, visit www.astm.org/JOIN.

ASTM International is one of the largest international standards development and delivery systems in the world. ASTM International meets the World Trade Organization (WTO) principles for the development of international standards: coherence, consensus, development dimension, effectiveness, impartiality, openness, relevance and transparency. ASTM standards are accepted and used in research and development, product testing, quality systems and commercial transactions.

ASTM Committee D04 Next Meeting: June 8-10, June committee week, St. Louis, Mo.
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