Correlation Between Tensile and Compressive Strengths for Lean Mass Concrete.
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS
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Four lean mass concrete mixtures containing crushed limestone aggregate two with and two without fly ash, were mixed and specimens were cast and cured. Tests for compressive and tensile splitting strengths were made on specimens from these mixtures. The tests were intended to a develop information on the effect of low temperatures on low-strength concrete at early ages up to 28 days and b develop data on the relationship between tensile splitting and compressive strengths for lean mass concrete containing fly ash as compared with concrete not containing fly ash. The results indicate that the tensile to compressive strength relationship was fairly close for all specimens of the same size and same type of curing for all mixtures at all test ages. Specimen size had a greater effect on tensile strength than on compressive strength. Temperature had a considerable effect on both tensile and compressive strength. Modified author abstract
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