普通混凝土硬化初期抗冻能力的研究

研究了普通混凝土在硬化初期受到一次冻结后对质量的影响，得出了混凝土的早期抗冻能力取决于冻前的养护程度而与力学强度并无直接联系的结论。从而提出了抗冻临界成熟度的概念，认为混凝土的抗冻临界成熟度取决于水泥品种和水灰比，并以此来表征混凝土的早期抗冻能力。

A Study on Fighting Freezing Ability of General Concrete in Its Initial Harden Stage

This thesis discussed about the effect of general concrete in its initial hardenstage after being once frozen. The author thinks that the fighting freezing ability of generalconcrete depends mainly on curing degree before being frozen, and it has none direct businesswith machanics. So, the concept of criticaI matural degree was put out- And also the criticamatural degree of fighting freezing ability of general concrete depends mainly on the assort-ment of cement and the proportion of water, so as to express the initial frighting freezing a-bility of cocrete.