ISSN: 0149-6123
CODEN: CCAGPD
Page Count: 12

Variation of Laboratory Concrete Flexural Strength Tests
Greer, WC
Senior materials engineer, Law Engineering Testing Company, GA

Abstract

An analysis of 145 laboratory flexural-strength concrete mixes prepared for projects at the expansion of the Atlanta International Airport is presented. Typical values for within-test (within-batch) and between-test (between-batch) standard deviations are presented and compared with data published by others. Flexural strength as a function of age in the laboratory is discussed, and typical values are given for Type I cement mixes.

Keywords:
coefficient of variation, concretes, concrete pavements, modulus of rupture tests, standard deviation, statistics, variability, laboratory within-test variation, laboratory between-test variation

Paper ID: CCA10261J
DOI: 10.1520/CCA10261J
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