Title:
Admixture Compatibility in Special Concretes
Author(s):
N. P. Mailvaganam
Publication:
Symposium Paper
Volume:
186
Issue:
Appears on pages(s):
615-634
Keywords:
chemical mineral admixtures; compatibility; concretes
DOI:
10.14359/5581
Date:
5/1/1999
Abstract:
Concrete is no longer produced as a rational mixture of just cement, stone and water. It has matured to a mixture which includes both chemical and mineral admixtures. A mixture of admixtures is used to obtain special concretes that are characterized by very high flow, good cohesion and self-leveling properties, that can be place underwater without the aid of tremies, that expand and induce compressive stresses or reduce shrinkage, and can be placed and cured at sub-zero temperatures. The use of a mixture of admixtures I a single mix Specific incompatibilities between certain admixtures are cited and the manner of resolving such problems discussed.