引气混凝土中掺盐后耐磨性基本不变。
The abrasion resistance of air entraining concrete has little changes when salts added into concrete.
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.
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.
本规范涵盖了建议作为引气剂使用并加入到现场混凝土混合料中的材料。
This specification covers materials proposed for use as air-entraining admixtures to be added to concrete mixtures in the field.
提出路面碾压混凝土含气量测定方法及引气剂适宜掺量；
The measuring methods of air contents and the appropriate adding quantities of air entraining agent in its concrete were put forward.
结果表明：在同强度条件下，引气型混凝土的抗碳化性能显著高于普通混凝土。
The results show that carbonation resistance of air-entrained concrete are evidently better than that of ordinary concrete at equal strength.
通过研究发现，在混凝土中适当引气可以大幅度提高混凝土的耐久性能。
It was shown in study that by moderately added air entraining agent in concrete would obviously enhance the concrete durability.
简要论述了我国引气剂不被广泛应用的原因，阐述了引气剂对混凝土各项性能的影响。
The reasons that air entraining admixture is not widely used in China are discussed in brief and the influence of air entraining admixture on every property of concrete is described.
目前泵送混凝土用量过大，为了保证泵送混凝土的可泵性，往往在泵送混凝土中加入适量的引气剂。
At present, excessive pumping concrete, pumping concrete in order to ensure the availability of pumps, pumping concrete, often adding an appropriate amount of air-entraining agent.
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.
引气剂——使混凝土拌合物在拌和过程中引入空气而形成大量微小、封闭而稳定气泡的外加剂。
Air entraining agent can lead into air to produce lots of little and stable bubbles in the process of mixing concrete and other mixture.
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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