Controlling Concrete Compressive Strength by a Penalty Function


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Title: Controlling Concrete Compressive Strength by a Penalty Function

Author(s): Richard M. Shane

Publication: Journal Proceedings

Volume: 70

Issue: 1

Appears on pages(s): 28-30

Keywords: compressive strength; concrete construction; concretes; probability theory; quality control; reliability: sampling; specifications; statistics,

Date: 1/1/1973

The two-fold problem of specifying concrete design strength and insuring producer compliance is discussed. A specification format is recommended along with a quality assurance procedure based on a linear penalty function. Assuming that a producer behaves in a rational manner and produces concrete at minimum cost to him it is demonstrated how the penalty can be related explicitly to a measure of quality assurance. Relationships that can be used to compute the quality control cost and appropriate quality assurance sample size are also presented. Finally procedures needed by the producer to optimize with respect to his total cost are presented.