活化增钙粉煤灰对水泥性能的影响

Influence of activated Ca-enhanced fly ash on cement properties with composite admixture

测试了将增钙粉煤灰物理活化或化学活化后作混合材,水泥在凝结时间、安定性、强度方面的变化。结果表明:利用化学活化和物理活化对增钙粉煤灰进行改性可提高其极限掺量,同时改善其安定性,水泥强度得到有效提高。

The difference of setting time and soundness and strength of cement prepared by P·O42.5 cement that was mixed with Ca-enhanced fly ash activated by physical or chemical method was tested. The results showed that the upmost amount of additives could be increased by the modification of Ca-enhanced fly ash both by physical and chemical activation method, and the soundness and strength of cement could be improved.