Title:
Applying Superpave Aggregate Technology to High-Strength PCC
Author(s):
L. K. Crouch and Roy C. Loutzenheiser
Publication:
Concrete International
Volume:
21
Issue:
5
Appears on pages(s):
28-31
Keywords:
coarse aggregates; compressive strength; crushed aggregates; high-strength concretes; surface texture
DOI:
Date:
5/1/1999
Abstract:
Research was directed to quantifying the effects of coarse aggregate angularity and surface texture on the compressive strength of high-strength portland cement concrete. A locally-available rounded river gravel was obtained in the natural condition and crushed, and then a concrete mixture was proportioned. Other combinations of aggregate were used in control batches. Compressive strengths of 30 batches were evaluated at 7, 28, and 56 days. High correlation coefficients indicate that quantitative measurements of angularity may be a useful tool in the pre-evaluation of coarse aggregates for high-strength PCC.