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实验室和现场试验的结果表明,通过增加混凝土的流动性和内部粘聚性,降低泌水和离析倾向,CPA-1A型泵送剂能将水泥含量和砂率低的贫混凝土变为可泵送混凝土。加入泵送剂后,泵送阻力损失降低50%左右。在等强度条件下,掺CPA-1A型泵送剂的混凝土的成本比不掺任何外加剂或掺其它泵送剂的混凝土成本至少低36%。
Laboratory and field test results show that CPA-1A pumping agent can change the lean concrete with low cement content and sand rate to a pumpable level by increasing the fluidity and internal cohesion of concrete and reducing bleeding and segregation tendency Send concrete. After adding pumping agent, pumping resistance loss reduced by about 50%. At equal strength, the cost of concrete with CPA-1A pumping agent was at least 36% lower than the cost of concrete without any admixture or other pumping agents.