单掺石灰石粉混凝土配合比试验配制实践

Mix Proportion Test of Concrete with Limestone Powder

粉煤灰作为混凝土掺合料较为常见,粉煤灰、石灰石粉双掺混凝土也有不少水电项目上成功使用的案例,单掺石灰石粉作为掺合料使用较少,该文介绍了单掺石灰石粉混凝土配合比试验参数选取及主要配制过程,选取10%、20%、30%这3种掺量进行了试验,围绕混凝土及拌合物进行试验并对使用效果进行了初步反馈,可给石灰石粉混凝土使用提供参考。

Fly ash is more common as concrete admixture.There are many successful cases of fly ash and limestone powder mixed concrete in hydropower projects.Limestone powder mixed alone is less used as admixture.This paper introduces the parameter selection and main preparation process of concrete mix proportion test with limestone powder mixed alone,and tests with 10%,20%and 30%admixture,Around the concrete and mixture test,and the use of the effect of the preliminary feedback,can provide a reference for the use of limestone powder concrete.