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目前,世界各国混凝土冬季施工一般采用如下两种方法:英国、欧美、日本等国通常采用高强水泥或快速养护的方法;苏联、丹麦、瑞典、及北欧各国多采用掺抗冻外加剂、热拌混凝土和蓄热法养护等综合措施。高强水泥、快速养护固然可尽快达到混凝土临界强度具有一定抗冻能力。但从节约能源、方便施工、降低工程造价等方面考虑,对一般非特急工程以选用综合措施施工方法为宜。
At present, the concrete winter construction in the world generally adopts the following two methods: the United Kingdom, Europe and the United States, Japan and other countries usually adopt high-strength cement or rapid conservation methods; the Soviet Union, Denmark, Sweden, and the Nordic countries use antifreeze additives and hot mixes. Comprehensive measures such as conservation of concrete and heat storage. High-strength cement and rapid curing can, of course, achieve the critical strength of concrete as soon as possible and have a certain ability to resist freezing. However, from the aspects of energy conservation, convenience of construction, and reduction of project cost, it is advisable to choose comprehensive measures for general non-urgent projects.