石灰石粉作为矿物掺合料对水泥胶砂性能的影响研究

Study on the effection of limestone powder as mineral admixture on cement mortar property

本文以石灰石粉等量替代水泥、等量替代粉煤灰或矿渣粉,试验研究了石灰石粉对水泥胶砂流动度和强度的影响。试验结果表明:作为掺合料在砂浆中掺入10%~30%数量的石灰石粉是完全可行的,与单掺粉煤灰相比,石灰石粉与粉煤灰复掺作为掺合料的效果较好;而与矿渣粉相比,石灰石粉与矿渣粉复掺作为掺合料的效果较差。

This paper used limestone powder in substitution of cement,fly-ash or slag powder,and tested the effection of limestone powder on cement mortar fluidity and strength.The results showed that,it is feasible to mix limestone powder as admixture during 10%~30% in quantity in mortar,and compared with only mixed fly-ash,it is better using the compound mixture of limestone powder and fly-ash,but compared with only mixed slag,the effect is worse.