Effects of curing conditions and addition of fine blast furnace slag powder on the initial performance of concrete using expanding material

2017 International Conference on Building Materials and Materials Engineering

材料科学;土木建筑工程

Nakajima, Nozomi^1 ; Hirabe, Kazuki^1 ; Hashimoto, Shin-Ichiro^2 ; Date, Shigeyuki^3

Tokai University, Graduate School of Engineering Building Civil Engineering Major, Hiratsuka city, Japan^1

Fukuoka University, Faculty of Engineering Department of Social Design Engineering, Fukuoka city, Japan^2

Tokai University, Faculty of Engineering Department of Civil Engineering, Hiratsuka city, Japan^3

关键词: Constraint expansions;    Curing condition;    Expandable materials;    Expanding materials;    Furnace slags;    High fluidity concrete;    Steam curing;    Type expansions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/264/1/012011/pdf
DOI  :  10.1088/1757-899X/264/1/012011

来源: IOP

【 摘 要 】

In this study was investigated the effect of steam curing in the case of adding expandable material to powdery high fluidity concrete containing blast furnace slag fine powder on two kinds of expansive materials, ettringite type inflation material and lime type expansion material. As a result, the constraint expansion strain increases with the ettringite type due to the increase in the steam curing temperature. However, it was confirmed that it decreased with the lime type expansion material.