The poozzolanic effect of fly ash on shape looks and function of the Calcium aluminite,Which is the cement hydrated product,is also introduced.

粉煤灰的火山灰效应对化产物钙矾石的形貌和性能会产影响。

It is shown that expansible ettringite forms in the topochemical reaction,and crystallizes in-situ on the surface of unhydrated aluminate minerals and orients radially.

发现能够产膨胀的钙矾石是由局部化学反应所；化的铝酸盐矿物表面原地结晶，呈放射状长。

The research results show that the main minerals in "Di" of Changhua Chicken Blood Stone are dickite and kaolinite, and minor minerals are alunite, halloysite, quartz and pyrite, et al.

从“冻地”到“刚地”,地开石逐渐减少,高岭石、明矾石、石英和黄铁矿逐渐增多。