粉煤灰掺量对混凝土抗压强度的影响

On influence of fly ash mixture on concrete compression strength

为探讨粉煤灰适宜掺量对混凝土性能的影响,利用正交试验,取分别为15%,30%,40%的粉煤灰掺量,对粉煤灰混凝土7 d和28 d的抗压强度进行了研究,试验结果表明,粉煤灰掺量为40%时对普通混凝土较为适宜。

In order to explore the influence of the adequate mixture of the fly ash on the concrete performance,the paper adopts the orthogonal test with fly ash mixture whose volumes are 15%,30% and 40%,researches the compression strength of 7 d and 28 d fly ash concrete,and proves by the test result that the fly ash with 40% is proper for common concrete.