Tolerances has become a joint committee of the American Concrete Institute (ACI) and the American Society of Concrete Contractors (ASCC) of St. Louis, Mo., according to Bruce Suprenant, technical director, ASCC. Suprenant is vice chair of this ACI technical committee, Eric Peterson, Webcor, San Francisco, Calif. chairs 117.
The mission of ACI 117 is to collect, develop, coordinate, and specify tolerances and related information for concrete construction and materials through liaison with other ACI committees and related industry organizations.” ACI is the major sponsor of the joint committee and ASCC is the minor sponsor. “In addition to providing committee assistance,” Suprenant explains, “ASCC will provide technical input during document review and will be instrumental in selecting committee leadership”.
The organizations have informally worked together on this subject for the past several years. “As an example, from 2007-2011, ASCC supported ACI 117 with an $82,000 grant to complete ACI 117.1R-14 “Guide for Tolerance Compatibility in Concrete Construction,” says Suprenant. “Being a joint committee will provide formal recognition to the efforts of both organizations with respect to their interests in tolerances.”
“Contractors can contribute a significant amount of data to the tolerances conversation, as they have the ability to measure their projects and share their findings,” says Peterson. “Only when we are able to determine what tolerances are practical can we accurately specify those numbers for the industry.”
