Title:
Effects of Size and Curing on Cylinder Compressive Strength of Normal and High-Strength Concrete
Author(s):
Pierre-Claude Aitcin, Buquan Miao, William D. Cook, and Denis Mitchell
Publication:
Materials Journal
Volume:
91
Issue:
4
Appears on pages(s):
349-355
Keywords:
compressive strength; curing; drying shrinkage; high-strength concrete; statistical analysis; strength; Materials Research
DOI:
10.14359/4044
Date:
7/1/1994
Abstract:
The influence of cylinder size and curing on measured compressive strength was investigated for different strength concretes. Three batches of ready-mix concrete with target compressive strengths of 35, 90, and 120 MPa (5000, 13,000, and 17,500 psi) were used. The curing conditions included air-cured, sealed, and water-cured for the 100-, 150-, and 200-mm- (4-, 6-, and 8-in.)-diameter cylinders. The beneficial effects of preventing moisture loss and water-curing are directly observed in the test results. The increased apparent strengths with decreasing cylinder size are also presented. Relationships for compressive strength gain are given for normal strength, high-strength, and very high-strength concretes studied, and for different curing conditions and different cylinder sizes.