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为了解决混凝土冬季施工问题,国内外很多研究者正在从事混凝土化学抗冻剂的研究工作。现研究出的种品,从化学组成上大体可分为含氯与无氯两大类。含有氯化物的抗冻剂应用最早,而且品种很多。苏联应用的八种抗冻剂,其中四种含有氯化物;在日本市售的八种混凝土抗冻剂中七种是以氯化钙为主体的。目前我国市售的T—40混凝土抗冻剂、WND混凝土抗冻剂就是含有氯化物系列的产品。应当指出,含有氯化钙的抗冻剂的抗冻效果很好,但是因其
In order to solve the problem of concrete winter construction, many researchers at home and abroad are engaged in the research of concrete chemical antifreeze. The species that are currently researched can be roughly classified into two major categories, chlorine and chlorine-free, from the chemical composition. Chloride-containing antifreeze is the earliest and has many varieties. Among the eight antifreezes used in the Soviet Union, four of them contain chlorides; of the eight concrete antifreezes that are commercially available in Japan, seven are based on calcium chloride. At present, T-40 concrete anti-freezing agent and WND concrete anti-freezing agent that are commercially available in China are products containing chloride series. It should be noted that the antifreeze effect of calcium chloride-containing antifreeze is good, but because of