The result indicated that the resistance to freezing and thawing of normal low-strengthconcrete is very low. Freeze-thaw cycles have important affect to concretestrength.
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。
2
This paper introduces the test results and calculative method by using the composite foundation of sand-stone pile and concrete pile with lowstrength.