Interested parties are invited to an organizational meeting, May 7, 1:00 p.m., at the Omni Austin Hotel, Austin, Texas, where the scope and activities of a proposed ASTM Subcommittee on Durability of Concrete Pipe and Manholes will be discussed by members of ASTM Committee C13 on Concrete Pipe.

“The new proposed subcommittee on durability would develop new test methods for accelerated corrosion resistance testing of concrete pipe,” explained C13 member Jeff Enyart, vice president of product development, ISG Resources, Texas, who will lead the organizational meeting. “In addition, the committee would develop standard guidelines to provide direction to users regarding the various corrosion-resistive options available and guidelines for use in predicting the service life of these various materials.”

Participation and input is sought from interested agencies and engineers, especially those who use similar test methods.

The scope of the proposed subcommittee is “to develop methods of testing, specifications, definitions, practices, guidelines and to stimulate research relating to the durability and performance of concrete pipe materials, components and combined assemblies that is subjected to various environments. These objectives will be implemented by the development and coordination of standards relating to nomenclature, standard conditions, and methods associated with the exposure to specific environments and accelerated or service testing of such materials, components and combined assemblies.”

“These efforts will benefit users and producers by developing standard test methods that will allow groups to make meaningful comparison of the tests by various agencies and of various materials,” added Enyart, a civil engineer who develops enhanced pozzolan technology for concrete products at ISG. “Durability of concrete pipe and manholes can be a concern in certain applications, particularly sanitary sewer applications, where corrosive conditions may exist.

“There are a number of companies either developing or supplying various products that provide corrosion protection for concrete pipe used in sanitary sewer or other potentially corrosive environments,” he continued. “In addition, there are a number of groups that are using a variety of test protocols to simulate accelerated testing of concrete products in corrosive environments. Each agency/engineer/manufacturer uses different test methods that they feel has certain advantages in predicting the long-term performance of materials.

“The committee shall establish liaison with other ASTM technical committees with related interests. Where appropriate, the committee will also assure that its standards are harmonized with related international standards.”

For further technical information, contact Jeff Enyart, ISG Resources, Houston, Texas (phone: 281/775-4652). For additional C13 details, contact Staff Manager Bob Morgan, ASTM (phone: 610/ 832-9732). //

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