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中州-Ⅱ型混凝土早强防冻剂,是将化工厂副产品硫酸钠通过烘干、处理后作为主要原料,掺入微量的三乙醇胺作水泥活性激发剂,并选用糖类减水剂等,按照要求的生产工艺复合而成。通过河南省九家水泥厂的4个水泥品种、1200余组水泥胶砂和混凝土试块的试验,以及在工地试用表明: 在标准养护条件下,可使普通水泥混凝土3天强度提高29%,28天强度提高15%左右,达到28天强度70%的天数,由原来的7～9天缩短到4天左右;可使矿渣水泥混凝土3天强度提高50%,28天强度提高21%～48%,达到28天强度70%的天数由原来的9～11天缩短到3～5天。
Zhongzhou-Type II concrete early-age antifreeze agent is used as the main raw material after sodium sulphate, a by-product of chemical plants, is dried, processed, and mixed with trace triethanolamine as the active activator of cement, and used as a water reducer for sugar, etc. The production process is compounded. Through the tests of 4 cement types, 1200 sets of cement mortar and concrete test blocks of nine cement plants in Henan Province and trials at the construction site, the strength of ordinary cement concrete can be increased by 29% under standard curing conditions. The 28-day strength increased by about 15%, reaching the 28-day strength of 70% of the days, from the original 7 to 9 days to 4 days; the slag cement concrete strength can be increased by 50% for 3 days, 28 days, the strength increased by 21% to 48 %, the number of days that reached 70% of the intensity of 28 days was shortened from 9 to 11 days to 3 to 5 days.