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Research group offers returned concrete recycling guidelines.(COMMODITIES)

Construction & Demolition Recycling

| November 01, 2007 | COPYRIGHT 2007 G.I.E. Media, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

* The RMC Research & Education Foundation has released a new study entitled "Crushed Returned Concrete as Aggregates for New Concrete."

The study is based on research performed at the National Ready Mixed Concrete Association's (NRMCA) Research Laboratory in Silver Spring, Md. The report "evaluates the effects of the use of crushed concrete aggregate (CCA) on fresh and hardened concrete properties by comparing these properties to concretes containing virgin aggregates," says a news release from the organization. "The report includes guidance for ready mixed concrete producers on a methodology for the appropriate use of crushed concrete aggregates (CCA) in concrete."

The ready mixed concrete industry could save approximately $300 million per year through the use of crushed returned concrete as aggregates, according to the study. "Use of CCA supports sustainable construction initiatives and adds to the benefits that concrete can provide in this arena," the NRMCA states.

"The call for increased ...

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