Journal Published Online: 01 July 1990
Volume 12, Issue 1

Synergistic Roles of Slag and Silica Fume in Very High-Strength Concrete

CODEN: CCAGDP

Abstract

A very high-strength concrete (W/C = 0.20) containing 10% silica fume, 30% slag replacement for cement, and a high-range water-reducing admixture attained a compressive strength of 94 MPa at 28 days. The microstructural development of this concrete was studied from 1 to 28 days with SEM/EDXA and TEM. The slag used was reactive, with 70% melilite group phases and an index of hydraulicity of 1.2. Microstructural changes occurring in the first 28 days are presented. The factors responsible for promoting strength are also discussed.

Author Information

Sarkar, S
Faculté des Sciences Appliquées, Université de Sherbrooke, Sherbrooke, Quebec, Canada
Aitcin, P-C
Faculté des Sciences Appliquées, Université de Sherbrooke, Sherbrooke, Quebec, Canada
Djellouli, H
Faculté des Sciences Appliquées, Université de Sherbrooke, Sherbrooke, Quebec, Canada
Pages: 6
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Stock #: CCA10386J
ISSN: 0149-6123
DOI: 10.1520/CCA10386J