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.
冻胶泡沫是由水、气、起泡剂（表面活性剂）、稳泡剂（聚合物）和交联剂组成。
The gelled foam comprises of water, gas foaming agent (surfactant), stable foam agent (polymer ) and cross-linking agent.
冻融条件下引气混凝土的多轴力学性能研究，目前尚处于初步阶段。
Experimental study on multiaxial characteristic of air-entraining concrete after freeze-thaw cycling is just in the initial stages.
阐述了提高混凝土抗冻融耐久性的措施，分析了引气剂对提高混凝土抗冻融的效果及其影响因素。
Through the analysis of the damage mechanism of concrete freezing and thawing, the article puts forward some measures to improve the durability of hydraulic structures.
而引气已成为提高混凝土抗冻性的一项主要措施广泛应用于各种混凝土工程中，并取得了明显的经济效益和社会效益。
As a main measure to improve the frost resistance of concrete, air-entrained concrete has been applied to many kinds of engineering and has got very clear financial and social effects.
而引气已成为提高混凝土抗冻性的一项主要措施广泛应用于各种混凝土工程中，并取得了明显的经济效益和社会效益。
As a main measure to improve the frost resistance of concrete, air-entrained concrete has been applied to many kinds of engineering and has got very clear financial and social effects.
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