Study of steel fiber and expansive agent on toughening and crack arrest of self-compacting concrete
LI Jin
YANG Jie
WU Chenghao
YIN Gang
YU Xuelan
XIE Jianguang
GENG Fei
Abstract：The effect of steel fiber and expansive agent on the strengthening,fiber toughening and crack arrest effect of selfcompacting concrete were studied by the technology of high efficiency water reducing,fiber toughening and micro expansion.The results show that steel fiber can significantly improve the splitting tensile and fiexural strength of self-compacting concrete,presented a linear relationship with the increase of content of steel fiber,steel fiber and expansive agent can effectively inhibit the early and latter shrinkage cracking,and had a slight expansion in the early,reached the first level of crack resistance,but fell in the latter.360 d dry shrinkage rate less than 100 με.
Keywords：steel fiberexpansive agentself-compactingsplitting tensile strengthbending strengthplastic crackingdrying shrinkage
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 50-52,62 )