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News from ASTM
The ASTM plans a symposium on “New Developments in Test Methods for Self-Consolidating Concrete,” to be held Sunday, June 22, 2008, at the Hyatt Regency Denver, Denver, Colo. The objectives of the symposium are to provide a forum on the use of test methods and consider the application of new methods to qualify self-consolidating concrete mixtures.
Also, all interested parties are invited to join in the activities of Subcommittee C09.49 on Pervious Concrete as it develops its first proposed standard, WK16885, Test Method for Density and Void Content of Pervious Concrete. WK16885 will be used to verify that fresh pervious concrete represents a producer’s mix design for a given project. Engineers, test laboratories and producers investigating mixture proportions will also use the proposed standard.
A proposed standard being developed by ASTM International Committee C09 on Concrete and Concrete Aggregates will monitor clogging and long-term permeability of pervious pavements, as well as determine if early sealing of the pavement has occurred during construction. This proposed standard, WK17606, Test Method for Permeability of Pervious Concrete Pavements, is under the jurisdiction of Subcommittee C09.49 on Pervious Concrete.
Finally, a recently approved revision to ASTM International standard C150, Specification for Portland Cement, includes three 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 C150 with AASHTO’s standard, M 85, Specification for Portland Cement.
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