基于规划求解的水泥粉煤灰混合料配合比设计方法

Mix Proportion Design Method of Cement-fly ash Mixture based on Programming Solution

为提高水泥粉煤灰混合料的设计质量,提出了基于规划求解的水泥粉煤灰混合料配合比设计方法。利用规划求解的方式,通过试验确定粉煤灰和水泥掺量对混合料无侧限抗压强度、干密度、含水量的影响,最终确定水泥与粉煤灰的配合比。试验结果表明:当粉煤灰的掺量为11%,水泥的掺量为5.5%时,水泥粉煤灰混合料的无侧限抗压强度达到了最高值,并且混合料的干密度和含水量也满足标准要求,水泥粉煤灰混合料设计配合比为5.5∶11,施工配合比为6∶11.5时混合料的性能表现最佳。

In order to improve the design quality of cement-fly ash mixture,a design method of cement-fly ash misture ratio based on planning solution was put forward.By means of planning solution,the influence of fly ash and cement content on the unconfined compressive strength,dry density and water content of the mixture is determined through experiments,and finally the mixture ratio of cement and fly ash is determined.The test results show that when the content of fly ash is 11%and the content of cement is5.5%,the.unconfined compressive strength of cement fly ash misxture reaches the highest value,and the dry density and water content of the mixture also meet the standard requirements.Finally,it is determined that the cement fAly ash misture has the best performance when the design mix ratio is 5.5:11 and the construetion mix ratio is6:11.5.