吉林建筑大学学报

为研究基于响应面法的钢纤维(SF)掺量、聚丙烯纤维(PP)掺量和粉煤灰(FA)掺量对混杂纤维ECC材料劈裂抗拉强度的影响，采用响应面中的Box-Behnken试验设计方法构建劈裂抗拉强度响应面模型，取得响应值的二次多项式回归方程，以聚丙烯纤维掺量(0.5%,1%,1.5%)、钢纤维掺量(0.5%,1%,1.5%)和粉煤灰掺量(40%,60%,80%)3个因素为响应因子，以劈裂抗拉强度作为响应值，通过方差分析证明模型的可靠性，并优化处理其配合比参数。

In order to investigate the effect of response surface methodology based steel fiber(SF) dosage, polypropylene fiber(PP) dosage and fly ash(FA) dosage on the splitting tensile strength of hybrid fiber ECC materials.The Box-Behnken experimental design method in response surface was used to construct the split tensile strength response surface model, and a quadratic polynomial regression equation was obtained for the response values, and the three factors of polypropylene fiber dosage(0.5%,1%,1.5%),steel fiber dosage(0.5%,1%,1.5%) and fly ash dosage(40%,60%,80%) were used as the response factors to the split tensile strength as the response value, tensile strength as the response value, the reliability of the model was proved by ANOVA to optimize its proportion parameters.