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由于高层、高级建筑物在国内外大量涌现,对作为骨架的混凝土结构耐久性要求,有提高的呼声,因而作为混凝土耐久性重要内容之一的抗冻性,越来越受到重视。本文首先对混凝土的冻害进行分类;进而简介了当代混凝土冻害方面的机理研究成果,重点是美国鲍维斯的理论贡献;最后提出作者对于执行现行国家标准GBJ204-83中有关混凝土冬期施工和抗冻性的一些看法,以及开发新型早强、抗冻剂的建议。
As high-rise and high-rise buildings have emerged at home and abroad, the durability of the concrete structure as a framework has been demanded and there has been an increase in demand. As a result, frost resistance, which is one of the important contents of concrete durability, has received increasing attention. This article first classifies the frost damage of concrete; then it introduces the research results of the mechanism of contemporary concrete freezing damage, focusing on the theoretical contribution of the United States Bowvis; Finally, the author proposes that the implementation of the current national standard GBJ204-83 on the winter construction of concrete and antifreeze Some of the views of sex, as well as suggestions for the development of new types of early-strength, anti-freeze agents.