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混凝土的压缩强度决定于硬化水泥浆部分的微孔结构,因而可以用水银压入法进行推算。本文论述考虑骨料影响的强度推算法和推算值误差的研究,以及有关应用实例的情况。一、强度推算法概要 1.强度推算公式日本学者镰田、吉野等人提出的强度推算公式为以下两式: log(F_c)=0.00903ETPV-0.2656log(Me) -0.7598 Ratio -0.0618/Age+3.624 (1) log(F_c)=-0.01092ETPV-0.2345log(Me) -0.7343Ratio+1.717W_c+3.294(2)式中F_c——推算压缩强度(公斤/厘米~2);
The compressive strength of concrete is determined by the microporous structure of the hardened cement slurry and can therefore be extrapolated using the mercury intrusion method. This article discusses the strength estimation algorithm that considers the impact of aggregates and the study of the estimated value error, as well as the application examples. I. Intensity Estimation Algorithm 1. Intensity Calculation Formula Japanese experts Sakata, Yoshino, and others proposed the following two formulas for strength prediction: log(F_c)=0.00903ETPV-0.2656log(Me) -0.7598 Ratio -0.0618/Age+ 3.624 (1) log(F_c)=-0.01092ETPV-0.2345log(Me)-0.7343Ratio+1.717W_c+3.294 (2) where F_c is the calculated compressive strength (kg/cm~2);