Freezing thawing durability of both ordinarily and air entrained concrete exposed to Xinjiang, Qinghai, Inner Mongolia and Xizang salt lakes were determined by the accelerated freezing thawing method.

• 用快冻法研究了普通混凝土与引气混凝土在水和西藏、内蒙古、新疆和青海盐湖卤水中的抗冻性。