Title:
Effect of Advanced Hybrid Admixture on High Strength Concrete
Author(s):
K. Saito , M. Kinoshita , K. Okada, and T. Nawa
Publication:
Symposium Paper
Volume:
239
Issue:
Appears on pages(s):
471-486
Keywords:
admixture; autogenous shrinkage; high strength concrete; hybrid; polycarboxylate; shrinkage reducing agent; viscosity
DOI:
10.14359/18397
Date:
10/1/2006
Abstract:
One-pack hybrid admixture (HSP) combining high fluidity, viscosity-reducing property, and shrinkage-reducing capability for high strength concrete with a target strength of 60 to 150 MPa was developed and examined. HSP showed high fluidity and viscosity-reducing performance, as well as excellent autogenous shrinkage-reducing effect to achieve a reduction in the autogenous shrinkage of 21 to 44% with respect to that of concrete containing a conventional high-range water-reducing admixture. HSP was therefore found to be a simple and effective solution to shrinkage problems for a wide range of high strength concretes.