Early Presumption on the 28d Strength of Cement-Clay Composite Powder Mixed Mortar
Based on the mixing ratio design of the cement-clay composite powder mixed mortar ,in this article,the 28d strength was early presumed by the 7d strength;by the method of mathematical statistics, different regression equations were established and the results were compared,which indicated that exponential equation had a better stability;the early presumption of 28 day strength of cement-clay composite powder Mixed Mortar provided a scientific basis for engineering construction.
Z.S. Liu, L.P. Xu, X.D. Liang, Z.H. Wang and H.M. Zhang
J. Xie et al., "Early Presumption on the 28d Strength of Cement-Clay Composite Powder Mixed Mortar", Advanced Materials Research, Vol. 1015, pp. 135-137, 2014