Experimental Study on C50 Concrete Mix Design for Expressway Project
Concrete is a widely used building material in highway engineering construction.The preparation of high-performance concrete with high strength and good pumping performance requires high requirements for raw material properties and mix design.This article studies the principle of selecting raw materials for preparing high-performance concrete with C50 strength grade and slump of 180mm.According to JGJ-2000"Design Specification for Ordinary Concrete Mix Proportion",key mix proportion parameters such as cementitious material dosage,water cement ratio,sand ratio,admixture dosage,and water reducing agent dosage are determined.The theoretical mix proportion is tested to obtain the production guidance mix proportion for C50 concrete.
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