摘要
本文在等强度条件下,研究了石灰石粉对普通强度等级的混凝土和高强混凝土的收缩、抗氯离子渗透性和抗碳化性能的影响。研究表明:在等强度条件下,随着石灰石粉含量的增加,普通强度的混凝土的干燥收缩减小,高强混凝土的自生收缩减小;掺石灰石粉的混凝土与纯水泥混凝土的抗氯离子渗透性能相近;当标准养护时间达到7d时,石灰石粉对混凝土的抗碳化性能无不利的影响。
The influences of limestone powder （LSP） on the shrinkage, resistance to chloride ion penetration, and anti-carbonation properties of normal concrete and high strength concrete at the given strength levels were investigated The results show that the drying shrinkage of the normal concrete and the autogenous shrinkage of the high strength concrete decrease with the increase of LSP addition, The resistance to chloride ion penetration of the concrete containing LSP is similar to that of the concrete without LSP. The addition of LSP has no negative effect on the anti-carbonation properties of concrete in the ease of no less than 7 d standard curing.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2014年第8期1967-1972,1977,共7页
Bulletin of the Chinese Ceramic Society
关键词
等强度
石灰石粉
收缩
氯离子渗透
碳化
given strength
limestone powder
shrinkage
chloride ion penetration
carbonation
