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热养护对于不同成分的水泥硬化特征,影响是不一样的。硅酸盐水泥制作的混凝土,在蒸汽养护后立即可达到的强度平均为标号强度的60～80%,而在这以后硬化就比较缓慢了。在水泥中掺入水渣,一般说有利于蒸养混凝土的相对强度的提高。然而矿渣含量不同的水泥和用这些水泥制作的混凝土,其绝对强度却有很大的差异。予制构件厂的生产实践表明,用硅酸盐水泥制作的蒸养混凝土具有最高的强度和抗冻性能;同时有资料表明,当水泥中的矿
Thermal curing has different effects on the hardening characteristics of cements with different components. Concrete made of portland cement can achieve an average strength of 60 to 80% of the mark strength immediately after steam curing, and it hardens afterwards. The incorporation of water slag in cement generally improves the relative strength of the steam-cured concrete. However, cements with different slag contents and concrete made from these cements have very different absolute strengths. The production practice of the prefabricated component plant shows that the steam-cured concrete made with Portland cement has the highest strength and frost resistance; at the same time, there are data indicating that when the cement is in the mine