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在混凝土工艺过程中,人们普遍希望混凝土具有早强快硬的性能。国内外都在改善普通水泥混凝土早期强度方面作了不少努力。在当前世界各国都把节省能源作为当务之急的时候,欧、美、日等国一些建筑企业在混凝土工程中采用自然养护的工艺日趋发展。自然养护除节省能源以外,尚能避免混凝土在蒸养过程中产生的一些缺陷,减少空气污染,在施工过程中可以不需要大型吊装及运输设备,损耗小,投资见效快。但自然养护的混凝土早期强度低、养护周期长的缺点则是极待解决的关键问题。一、提高混凝土早期强度的主要因素混凝土强度的发展决定于很多因素,除水泥本
In the concrete process, it is generally expected that the concrete has early strength and fast performance. Many efforts have been made at home and abroad to improve the early strength of ordinary concrete. In the current world where energy conservation is a top priority, some construction companies in Europe, the United States, Japan, and other countries are adopting natural conservation techniques in concrete projects. In addition to saving energy, natural conservation can still avoid some defects caused by concrete in the steaming process and reduce air pollution. In the construction process, large-scale lifting and transportation equipment can be avoided, and the loss is small, and the investment is quick. However, the shortcomings of naturally-curing concrete with low early strength and long maintenance cycle are the key issues to be solved. First, the main factor to improve the early strength of concrete The development of concrete strength depends on many factors, in addition to the cement