The result indicated that the resistance to freezing and thawing of normal low-strength concrete is very low. Freeze-thaw cycles have important affect to concrete strength.
结果表明普通低标号混凝土抗冻性能较差，冻融循环对混凝土强度影响较大。
There are evenly distributed open pores and closed pores Inside sample, evenly distributed closed pores not only reduce the Wa, but also increase the resistance to freezing and thawing.
样品内部均匀分布了大量的开口气孔和闭口气孔，样品均匀分布的闭气孔不仅降低了样品的吸水率，而且增加了样品的抗冻融性。
In bittern solution, freezing thawing will not destroy all concretes, and the frost resistance of concrete is decided by the capability of concrete resisting to chemical corrosion.
在盐卤水中，混凝土一般不会发生冻融破坏，混凝土抗冻性取决于混凝土抗盐溶液化学侵蚀的性能。
In bittern solution, freezing thawing will not destroy all concretes, and the frost resistance of concrete is decided by the capability of concrete resisting to chemical corrosion.
在盐卤水中，混凝土一般不会发生冻融破坏，混凝土抗冻性取决于混凝土抗盐溶液化学侵蚀的性能。
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