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水泥由硬练改为软练新标准后,相应的混凝土抗压强度计算式如何,在新标准的编制或执行当中,已成为较突出的问题。其计算式表达武为:R_h=AR_c(C/W-B)式中 R_h——混凝土标养28天抗压强度;C/W——灰水比;A——斜率常数;
After cement has changed from hard-practice to soft-practice new standards, the corresponding concrete compressive strength calculation formula has become a prominent issue in the preparation or implementation of new standards. Its formula expression is: R_h=AR_c(C/W-B) where R_h—the compressive strength of the concrete for 28 days; C/W—the gray water ratio; A—the slope constant;