摘要
硫铝酸盐复合型修补砂浆具有较好的速凝特性和微膨胀特性,采用超细粉煤灰部分代替复合水泥后,发现在低掺量下能提高砂浆的流动性、力学性能和耐久性,当掺量超过10%以后,部分性能会逐渐下降,在抑制砂浆的干燥收缩上,超细粉煤灰性能显著。
Considering the high unit price of SAC,this paper selected the superfine fly ash to partly replace the composite cement(SAC+OAC)and studied the effect of superfine fly ash on workability,mechanical strength and durability of the composite repair mortar.
作者
董丽华
DONG Li-hua(Shanxi Road&Bridge Construction Group Co.,Ltd.,Taiyuan,Shanxi 030006,China)
出处
《山西交通科技》
2019年第2期22-24,30,共4页
Shanxi Science & Technology of Transportation
关键词
修补砂浆
超细粉煤灰
抗渗性
力学强度
流动性
repair mortar
superfine fly ash
impermeability
mechanical strength
fluidity
