EFFECT OF CACO3 CONTENT ON THE DEGREE OF CO2 CURING OF CONCRETE

被引：0

作者：

Tu, Zhenjun ^{[1
]}

Shi, Caijun ^{[1
,2
]}

He, Pingping ^{[1
]}

Cao, Zhang ^{[1
]}

机构：

[1] Hunan Univ, Coll Civil Engn, Changsha 410082, Hunan, Peoples R China

[2] Hunan Univ, Coll Civil Engn, Key Lab Bldg Safety & Engergy Efficiency, Minist Educ, Changsha 410082, Hunan, Peoples R China

来源：

ADVANCES IN CHEMICALLY-ACTIVATED MATERIALS (CAM'2014) | 2014年 / 92卷

关键词：

Calcium carbonate; Microstructure; CO2; curing; remaining water-to-binder ratio;

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

This study investigated the effect of calcium carbonate powders on CO2 curing of concrete. The results indicated that the addition of calcium carbonate not only promoted the extent of CO2 curing, but also reduced the pre-curing time of concrete. The increase of calcium carbonate content increased the remaining water-to-cement ratio of the concrete. The highest extent of CO2 curing obtained when the specimens reached the optimum remaining water-to-cement ratio. The early CO2 curing product is mainly calcite, there was a certain amount of aragonite, mixed with silica gel.

引用

页码：281 / 289

页数：9

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