再生混凝土强度计算Bolomey公式回归系数αa′、αb′的试验研究

Experiment research of regression coefficients αa′ and αb′ on strength calculation formula of recycled concrete

普通混凝土抗压强度与水泥强度和灰水比之间大致成线性关系,再生混凝土是否也有同样的关系,需要进行试验验证。在试验的基础上,提出了再生混凝土Bolomey公式的概念,建立了再生混凝土的强度计算公式,即灰水比与其抗压强度之间的关系,并探讨了再生混凝土Bolomey公式中系数αa′、αb′值的确定方法,可供再生混凝土配合比设计参考。

It has a linear relation between the common concrete compression strength and cement strength with cement-water ratio, whether this relationship also exists in recycled concrete or not should be done experiment to verify.Based on some experiment, has put forward the concept of recycled concrete Bolomey Formula, established the relationship between recycled concrete compression strength and cement-water ratio, and dis- cussed the method to determine αa′ and αb′ values in recycled concrete Bolomey Formula.