STP1063

    Quality Control of Mortars: Cubes vs. Cylinders

    Published: Jan 1990


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    Abstract

    Use of 75×150-mm (3×6-in.) and 100×200-mm (4×8-in.) cylinders was found to be more consistent than 50×100-mm (2×4-in.) cylinders in predicting 50-mm (2-in.) cube compressive strengths. The use of 100-mm (4-in.) cubes generally produced the same results as 50-mm (2-in.) cubes but not in every case. The compressive strength results for cylinders can be conservatively assumed to be 85% of 50-mm (2 in.) cube strengths for all mortars tested except for conventionally-mixed masonry cement mortars, which produced cylinder strengths which were 93% as strong as their companion cube strengths. Ready-mixed mortars produced no difference in the relationship between cylinders and cubes from conventionally-mixed mortars.

    Keywords:

    conventional mortars, ready-mixed mortars, compressive strength, size effects, shape effects, quality control


    Author Information:

    Schmidt, S
    PresidentManager of Technical ServicesManager of Laboratories, Addiment, Inc., Atlanta, Georgia

    Brown, ML
    PresidentManager of Technical ServicesManager of Laboratories, Addiment, Inc., Atlanta, Georgia

    Tate, RD
    PresidentManager of Technical ServicesManager of Laboratories, Addiment, Inc., Atlanta, Georgia


    Paper ID: STP24980S

    Committee/Subcommittee: C12.03

    DOI: 10.1520/STP24980S


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