磨细锶渣、磨细矿渣及粉煤灰活性效应对比

Comparison of Activity Effect of Pulverized Strontium Slag,Pulverized Slag and Fly Ash

采用火山灰活性量化分析方法,运用胶砂强度、活性效应比强度系数、活性指数等指标对比分析了磨细锶渣、磨细矿渣和粉煤灰三者之间的活性效应.分析表明,胶砂强度可以评价胶砂试件的砂浆强度,但不能量化其中掺合料的强度贡献;而比强度指标可对各个龄期水泥胶砂试件中掺合料的活性效应,及其在胶砂试件总强度中所占的强度百分率进行量化评价,弥补了胶砂强度分析的缺陷.所研究的掺合料中,磨细矿渣及煅烧磨细锶渣的活性效应最好,且前者的后期活性较好,而后者更有利于早期的活性发展.

The activity quantitative analysis method of pozzolanic is used,and activity effects were compared among the pulverized strontium slag,pulverized slag and fly ash using indexes,such as strength of cement glue-sand mortar,specific strength coefficient of activity effect and activity index.It is shown that the strength of cement mortar can be evaluated by strength of cement glue-sand mortar;however,strength of cement glue-sand mortar can not evaluate the strength contribution of the admixtures to the cement m...