Title:
Performance of High-Durability Concrete
Using an Advanced Hybrid Admixture
Author(s):
K. Saito , M. Kinoshita, and H. Umehara
Publication:
Symposium Paper
Volume:
262
Issue:
Appears on pages(s):
123-138
Keywords:
autogenous shrinkage; drying shrinkage; durability; high range; high-strength concrete; polycarboxylate; shrinkage-reducing admixtures; water-reducing admixtures.
DOI:
10.14359/51663227
Date:
10/1/2009
Abstract:
In order to develop a chemical admixture which improves durability of concrete, we have experimentally made two types of hybrid admixtures combining a single-liquid type, high-range, water-reducing admixture with a shrinkage-reducing admixture, and examined their concrete properties, ranging from normal - to ultrahigh-strength.
Hybrid admixture, HSP1, for normal-strength concrete, showed reduced drying
shrinkage of approximately 15 % and HSP2, for high-strength concrete, showed an autogenous shrinkage reducing ability of approximately 20~35 %. Also, both showed sufficient resistance to frost damage and carbonation.