On the basis of summarizing the functions of water-reducing agent,the article describes the design methods of concrete mix proportion and concrete mix proportion by blending water-reducing agent,which has provided certain guidance for mix proportion design in concrete engineering and for improving the concrete utilization performance.%在总结减水剂作用的基础上,对混凝土设计配合比及掺加减水剂后配合比的设计方法做了阐述,为混凝土工程中配合比设计提供了参考,进而提高混凝土使用性能。
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