SYMPOSIA PAPER Published: 01 January 1990
STP24980S

Quality Control of Mortars: Cubes vs. Cylinders

Source

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.

Author Information

Schmidt, S
Brown, ML
Tate, RD
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Details
Developed by Committee: C12
Pages: 147–161
DOI: 10.1520/STP24980S
ISBN-EB: 978-0-8031-5124-6
ISBN-13: 978-0-8031-1453-1