本文取材于1981年3月美国预应力混凝土学会(PCI)的“有效利用能源的混凝土快速养护”报告。 1.水泥 水泥中C_3A与SO_3的含量应有适宜的关系。8％～14％高含量的C_3A与55％～65％高含量的C_3S结合能得到早期强度高的水泥。但S0_3含量低将降低主要生成强度的C_3S水化物的早期水化效率,因为在早期快速水化反应中得不到足够的SO_3。所以, This article is based on the March 1981 report of the American Institute of Prestressed Concrete (PCI) “Fast Maintenance of Energy-efficient Concrete.” 1. Cement The content of C_3A and SO_3 in cement should have a proper relationship. 8% to 14% high content of C_3A and 55% to 65% high content of C_3S can combine to give cement with high early strength. However, a low S0_3 content will reduce the early hydration efficiency of the main strength-generating C_3S hydrate because sufficient SO_3 is not obtained in the early rapid hydration reaction. and so,