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JAM减水剂是武汉市红旗造纸厂以芦苇作原料,加入万分之五蒽醌代替“碱法”造纸中的硫酸钠作催化剂(即烧碱-蒽醌法制浆造纸工艺)直接排放的碱性黑液。按暂行《混凝土减水剂试验方法》,经一年多试验研究与应用,证明此黑液可不经处理,直接作为普通型混凝土减水剂。 JAM减水剂对混凝土具有一定的引气作用和缓凝性,其发泡高度为22毫米,消泡时间大于2小时;在减水条件下,比基准混凝土初凝与终凝(贯入法)缓凝l小时左右;比基准混凝上含气量(0.8％)增加
JAM Water Reducing Agent is made from reeds as raw material in Wuhan Hongqi Paper Mill, and is replaced with alkalis directly discharged by replacing sodium sulphate as catalyst in the “alkali method” papermaking (ie caustic soda pulping process). Black liquor. According to the provisional “Test Methods for Concrete Water-reducing Agents”, after more than one year of experimentation and application, it has been proved that this black liquor can be used as an ordinary concrete water-reducing agent without treatment. JAM water-reducing agent has certain air-entraining and retarding properties to concrete with a foaming height of 22 mm and a defoaming time of more than 2 hours. Under the water-reducing conditions, the initial coagulation and final coagulation of the reference concrete (infiltration method) Retarded for about 1 hour; increased gas content (0.8%) compared to baseline coagulation