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建筑业作为我国经济发展非常重要的产业之一,为经济快速发展做出了巨大的贡献。在建筑业规模快速发展的情况下,由于我国北方每年的冬季严寒期达到了三至四个月,为了节省工期节约费用许多工程项目都会进行长时间的冬季施工。在施工过程中,经常因为过低的气温使得混凝土构件在初凝期发生冻害现象,在低气温、施工技术、混凝土配合比、施工环境状况等诸多因素的影响下,混凝土构件的适用性、耐久性、安全性在很大程度上降低了,因此造成的工程停工,延长了工期,增加了施工费用,从而降低了资金周转率,提高了资金成本,使得行业的发展受到严重的制约。近年来,大量的建筑物逐渐暴露出耐久性差的问题,越来越多的建筑物由于耐久性差而导致结构破坏,因此,混凝土结构的耐久性渐渐的受到国内外专家以及学者的重视,更多的人们越来越多的关注混凝土冬季施工措施。
As one of the most important industries in China’s economic development, the construction industry has made tremendous contributions to the rapid economic development. In the case of the rapid development of the construction industry, due to the annual winter cold season in northern China reached three to four months, in order to save time to save money, many projects will be a long winter construction. In the process of construction, often due to the low temperature makes the concrete components freeze-thaw phenomenon occurred in the initial setting, low temperature, construction technology, concrete mix, the construction environment conditions and many other factors, the applicability of concrete components, durability As a result, the project is stopped, the construction period is extended, the construction cost is increased, the capital turnover rate is reduced, the cost of capital is raised, and the development of the industry is severely restricted. In recent years, a large number of buildings gradually exposed to the problem of poor durability, more and more buildings due to poor durability led to structural damage, therefore, the durability of concrete structures gradually by domestic and foreign experts and scholars attention, more More and more people are concerned about concrete construction measures in winter.