马鞍山地处江南,冬季气温常在+5～-7℃,1月份最低气温可达-10℃。为保证混凝土冬季施工正常进行,必须寻求一种既适用于这种气候环境,又不锈蚀钢筋的早强型防冻剂。经过几个冬夏的试验研究,最后试验成功一种矾硫型复合早强防冻剂(简称“ESJ”剂)。试用证明,效果良好。 Ma’anshan is located in the south of the Yangtze River. Winter temperatures often range from +5 to -7°C. The minimum temperature in January is -10°C. In order to ensure the normal construction of concrete in winter, it is necessary to seek an early-type anti-freeze agent that is suitable for this kind of climatic environment without rusting steel bars. After several trials in winter and summer, the last test successfully was a helium-sulfur-type compound early-strength anti-freeze agent (“ESJ” agent). Trial proof, the effect is good.