Extending the Interpretation of Concrete Strength Data

ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: Extending the Interpretation of Concrete Strength Data

Author(s): Robert G. Sexsmith

Publication: Journal Proceedings

Volume: 66

Issue: 2

Appears on pages(s): 115-117

Keywords: compressive strength; concretes; plain concrete; probability theory; quality control;reliability; sampling; statistics.

Date: 2/1/1969

Abstract:
The method used at present for interpreting concrete strength data (ACI 318-63, Section 504 ) is briefly examined, attention being restricted to the case where strength is a basis for acceptance, and where mix proportioning, quality control, job inspection, etc., are consistent with accepted good practice. The present method focuses on the proportion of understrength test outcomes. A generalization of this method, using the same underlying assumptions, yields a probability function on the proportion of understrength concrete in the work, which is the variable of real interest. This probability function provides a basis for rational decisions regarding acceptance of the work.