DISSOLUTION RATE OF SILICA FUME IN VERY HIGH-STRENGTH CONCRETE

被引：29
作者：
SARKAR, SL
AITCIN, PC
机构：
[1] Univ de Sherbrooke, Sherbrooke, Que,, Can, Univ de Sherbrooke, Sherbrooke, Que, Can
来源：
CEMENT AND CONCRETE RESEARCH | 1987年 / 17卷 / 04期
关键词：
CEMENT - Hydration - CONCRETE AGGREGATES - Fly Ash - CONCRETE CONSTRUCTION;
D O I：
10.1016/0008-8846(87)90132-3
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A very high strength concrete, having a 91 day compressive strength of 113 MPa, was developed using Type III cement, limestone aggregates, sodium naphthalene superplasticizer and silica fume, with W/C ratio of 0. 24. SEM-EDXA and AEM were used to study the rate of dissolution of silica fume in this concrete, with progressive hydration. It was possible to observe the dissolution process of silica fume particles, which begin at an early stage. Within 28 days, most of the silica fume is consumed in the pozzolanic reaction. The initial reaction product is a silica rich gel which later transforms into different morphological types of C-S-H which are compacted together.
引用
收藏
页码：591 / 601
页数：11
相关论文
共 22 条
[1]  
AITCIN PC, 1985, P MAT RES SOC S, V42, P201
[2]  
AITCIN PC, 1986, DEC MAT RES SOC S BO
[3]  
AITCIN PC, IN PRESS COMP STUDY
[4]  
BACGE HH, 1981, 2ND P INT C SUP CONC, P1
[5]  
BEAUDOIN JJ, 1985, CEMENT CONCRETE RES, V15, P105, DOI 10.1016/0008-8846(85)90015-8
[6]  
BUCK AD, 1981, 3RD P INT C CEM MICR, P279
[7]   SOME FURTHER EVIDENCE ON A SPECIFIC EFFECT OF SILICA FUME ON THE PORE STRUCTURE OF PORTLAND-CEMENT MORTARS [J].
BUIL, M ;
DELAGE, P .
CEMENT AND CONCRETE RESEARCH, 1987, 17 (01) :65-69
[8]   HIGH-STRENGTH MORTARS CONTAINING CONDENSED SILICA FUME [J].
BUIL, M ;
PAILLERE, AM ;
ROUSSEL, B .
CEMENT AND CONCRETE RESEARCH, 1984, 14 (05) :693-704
[9]  
CHENGYI H, 1985, CEMENT CONCRETE RES, V15, P585
[10]  
Diamond S., 1976, P C HYDRAULIC CEMENT, P2
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