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混凝土的一般强度公式,在中小型混凝土工程和用于初步估算时,还有一定的用处。我国目前一般通用鲍洛米的混凝土强度公式:R_(28)=A·R_д(д/B-0.5)式中:R_(28)—混凝土28天抗压强度(公斤/厘米~2);R_д—水泥硬练标号;д/B—灰水比;A—经验系数,砾石混凝土 A=0.50,碎石混凝土 A=0.55。但是根据苏联建筑科学研究院和我国重工业部试验的结果,就是在集料品质不变的条件下,用鲍洛米公式计算所得的结果与混凝土实测的强度相比较,误差常达±20～30%左右。
The general formula for concrete strength is also of some use in small and medium-sized concrete works and in preliminary estimates. R_ (28) = A · R_ д (д / B-0.5) Where: R_ (28) - 28 days compressive strength of concrete (kg / cm ~ 2); R_д cement hard grade; д / B - gray-water ratio; A-empirical coefficient, gravel concrete A = 0.50, gravel concrete A = 0.55. However, according to the results of tests conducted by the Soviet Academy of Building Research and China’s Ministry of Heavy Industry, the results obtained by the Bowron formula are compared with those measured by concrete in the condition of constant aggregate quality, and the error usually reaches ± 20-30 %about.