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CMS6: A New Method of Determining Payment for In-Place Concrete with Double-Bounded Compressive Strength Pay Factors

Brief Project Description: Existing guidance for the use of a double-bounded pay factor system for the placement of concrete is inadequate if (1) the design distribution and/or the industry response is non-Normal, and (2) the incentives and disincentives are not symmetrical around the peak of the design distribution. To address this issue, we plan to (1) develop a new approach to calculating percent-within-limits from a non-Normal distribution of concrete compressive strengths, (2) demonstrate the implementation of the new approach for 3 different forecast scenarios, and (3) create a tool to facilitate the implementation of the new approach.

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Presenters: James Sullivan, University of Vermont Transportation Research Center

VTrans Champion: Nick Van Den Berg

Questions or comments about the Poster? Contact the researcher The researcher will assemble a Q and A document reflecting all queries received by 9 AM September 14th. The Q and A should be posted by September 15.