Effects of Internal Curing, Slag, and Silica Fume on Concrete Shrinkage

被引：5

作者：

Pendergrass, Benjamin ^{[1
]}

Darwin, David ^{[2
]}

Khajehdehi, Rouzbeh ^{[3
]}

Feng, Muzai ^{[3
]}

机构：

[1] Genesis Struct Inc, Kansas City, MO 64105 USA

[2] Univ Kansas, Dept Civil Environm & Architectural Engn, Lawrence, KS 66045 USA

[3] Univ Kansas, Lawrence, KS 66045 USA

来源：

ACI MATERIALS JOURNAL | 2018年 / 115卷 / 04期

关键词：

internal curing; prewetted lightweight aggregate; shrinkage; silica fume; slag cement; HIGH-PERFORMANCE CONCRETE; CRACKING;

D O I：

10.14359/51702193

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The shrinkage of mixtures containing replacements of total aggregate with prewetted lightweight aggregate (LWA) (0, 8, and 10% by volume) and replacements of cement with Grade 100 slag cement (0 and 30% by volume) and silica fume (0, 3, and 6% by volume) is evaluated. The results show that internal curing provided by prewetted LWA reduces the tendency of the mixtures to develop shrinkage strains. Further reductions are observed as slag is added in conjunction with prewetted LWA and as silica fume is added in conjunction with the prewetted LWA and slag.

引用

页码：585 / 593

页数：9

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