HPR Project No. 94 -- Performance Related Specifications for Hydraulic Cement Concrete Used in Construction and Rehabilitation of Ground Transportation

About the report:

Task 1 of the study approved as HPR Project No. 94 Performance Related Specifications for Hydraulic Cement Concrete Used in Construction and Rehabilitation of Ground Transportation consisted of a review of the state of the art for using statistical concepts for quality assurance of hydraulic cement concrete. In particular, the specifications employing statistical concepts in use by other states and the general experience of those states were .reviewed. A detailed review was made of such specifications in use, or being proposed for use, in Georgia, Louisiana, Mary land, New Jersey, Ohio, West Virginia, and the direct construction units of the FHWA, and the special provisions to the FHWA specifications FP 79 in use by Region 15. With the exception of Colorado, these agencies include all those reported by the FHWA as using statistical probabilities in portland cement concrete specifications. Colorado did not respond to either a letter request for information or a telephone inquiry.

In addition to the review of these specifications and the telephone conversation with the principals in most of the states using them, the recommended practices of the American Concrete Institute were reviewed. In particular, the principles given in ACI 214 were carefully considered.

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