Freezeproof durability of roll compacted concrete engineering in northwest cold and dry areas can not be guaranteed because entrainment of air is difficult.
西北高寒干燥地区的碾压混凝土工程，由于引气困难，导致其抗冻耐久性得不到保证。
Freezeproof durability of roll compacted concrete engineering in northwest cold and dry areas can not be guaranteed because entrainment of air is difficult.
西北高寒干燥地区的碾压混凝土工程，由于引气困难，导致其抗冻耐久性得不到保证。
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