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近年来在混凝土冬期施工中,由于负温外加剂方法简便适应国情,已日趋广泛的得到应用,各种型号的负温外加剂以科技产品的型式推上工程市场,我国三北地区每年至少有10余万立米混凝土在冬期施工中掺用着负温外加剂,对负温外加剂的应用,目前各地除加强管理,控制外加剂产品质量外,在负温混凝土学术理论研究方面,大家一致感
In the winter construction of concrete, due to the fact that the negative temperature admixture method is easy to adapt to the national conditions, it has become increasingly widely used. Various types of negative temperature additives are pushed onto the engineering market by the type of scientific and technological products. There are at least three types of negative temperature additives in the country each year. More than 100,000 cubic meters of concrete are mixed with negative temperature additives in winter construction, and the application of negative temperature additives is applied. At present, in addition to strengthening management and controlling the quality of admixture products, we are unanimously aware of the academic theories of negative temperature concrete.