研究了碱、石膏、石灰和温度对粉煤灰火山灰活性的激发作用。
In this paper, excitation effects of alkali, gypsum, lime and temperature on the pozzolanic activity of fly ash were researched.
煤矸石经热力活化后表现出较好的火山灰活性，水泥强度得到明显改善。
Whereas, those thermally activated coal gangue showed better pozzolanic reactivity, producing improved mortar strength properties.
论述了天然火山灰用作混凝土掺合料的矿物组成、物化性能；火山灰活性及其评定。
This paper expounds mineral composition, physical and chemical characteristics, activity and its evaluation of natural volcanic ash which is used as concrete admixture.
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