Title:
Use Less Cement
Author(s):
Bryant Mather
Publication:
Concrete International
Volume:
22
Issue:
11
Appears on pages(s):
55-56
Keywords:
DOI:
Date:
11/1/2000
Abstract:
With increasing interest in high-performance concrete, some investigators are examining why concrete is not always providing the service expected of it. Among other conclusions being drawn, there is a belief that the principal reason for this problem is the practice of adding too much cement to concrete. Emphasis is being placed on the bad effects of too great a cement content, including increased cracking due to shrinkage and thermal gradients. A recommendation to improve the performance of concrete in transportation is to modify those aspects of the specifications that permit and encourage the use of high volumes of cement to get high-early strengths, and which are not actually required.