The Experimental Study on the CMPI of Polymer Modified Cement Mortar by Orthogonal Design Method
Compared with the traditional index(compressive to flexural ratio),comprehensive mechanical performance index(CMPI)is more comprehensive response the strength and toughness improvements of modified composite material.CMPI of polymer modified cement mortar ware studied based on the orthogonal experiment.Four factors as water-binder ratio,polymer-binder ratio,sand-binder ratio,cement-slag and silica afume ratio,and each factor had four level values.The experimental results ware conducted and studied according to the orthogonal table L16(45).The results of variance analysis and range analysis show that the significant effect degree of the four factors on the CMPI was not the same,and the significant effect degree concluded from the variance analysis of repeated test data was larger,compared with the separate tests.The variance analysis of repeated test shows that sand-binder ratio and polymer-binder ratio had a significant effect on the CMPI of polymer modified cement mortar.
polymer modified cement mortarcomprehensive mechanical performance index(CMPI)compressive to flexuralratioorthogonal experimentfactor levelthe degree of influence
NETL
NSTL
万方数据
