但采用双掺防冻剂和泵送剂的方法不可取，科学合理的方法是采用防冻泵送剂。
But the method of mixing anti freeze and pumping aid together into concrete is not advisable, and the scientific technology is using anti freezing pumping aid in concrete.
通过对混凝土冻害情况以及混凝土冻害产生原因的分析，介绍了不同防冻剂的性能、作用机理及其适用范围等问题，提出了防冻剂的选用原则、方法。
Based upon analysis of the freezing damage of concrete and its causing reasons the performances, action mechanism and application scopes of different concrete antifreezes are introduced.
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