Pozzolanic reactivity of several pozzolanicadmixture were measured and compared by acid dissolution method. Effects of reaction degree of pozzolanicadmixture on strength of paste were discussed.
采用酸溶法测定并比较几种典型的火山灰质掺合料的火山灰活性，探讨其火山灰反应程度对浆体强度的影响。
2
With the clay in Yancheng area, the author has carried out experimental researches on the pozzolanic reactivity of the low temperature burnt clay and its application as cement admixture.
作者用盐城地区的粘土，进行了低温煅烧粘土的火山灰活性和用作水泥混合材的试验研究。
3
The test results show that by the joint action with the concrete admixture, the pozzolanic, micro-aggregate filling and durable effects of KGF powder can be realized properly.