粉煤灰与矿渣粉减水性应用研究

Study on reducing water use by fly ash and slag powder

按照混凝土的强度要求,根据粉煤灰和矿渣粉的减水性和对混凝土强度的贡献,确定粉煤灰和矿渣粉的掺量,进行混凝土配合比设计及其性能检验。试验选择了工程应用最多的C30混凝土,并设计了拌合物流动性和浆骨比前后基本一致的配合比,检验结果说明对混凝土的力学性能不会产生明显影响,而且粉煤灰和矿渣粉的减水性随掺量的不同而变化。

According to the requirements of the concrete strength and the water and on the strength of concrete with fly ash and slag powder reduction, determine the amount of fly ash and slag powder, concrete mix ratio design and performance test.Test selected C30 concrete most engineering applications, and the design of the mixing flow coordination and paste-aggregate ratio before and after basic consistent, the test results indicated that significantly affected the mechanical properties of concrete and not, fly ash and slag powder decreased with different water content and change.