机制砂掺河砂混凝土的配制及性能研究

摘要

According to the research on the TJ-5 sand river of machine-made sand along Wuhan-Shenzhen Expressway by No. 2 Harbor Bureau, the paper illustrates the concrete is bitterly economical and applicable,illustrates its features with the comparison of natural river sand,and analy-zes the grading circumstances of the sand.%通过对中交二航局武深高速TJ-5标机制砂掺河砂混凝土的研究，阐述了机制砂与天然河砂的特点，对机制砂掺河砂混凝土的级配情况进行了分析，指出机制砂掺河砂混凝土具有更好的经济性和适用性。