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速凝剂是井下喷射混凝土必须使用的添加剂,其质量的优劣直接影响到喷射混凝土的质量。多年来,鹤岗局井下喷射混凝土施工所用的速凝剂全部是另一种速凝剂。使用那种速凝剂基本上可以满足施工要求。但是,它对喷射混凝土的后期强度影响较大,对人体也有一定的危害。为此,1987年后我局选用了高效782速凝剂价为井下喷射混凝土的添加剂,施工效果比较明显。从1987年至今已陆续使用1550t,抖和出的混凝土喷射成巷累计40000m。
The quick-setting agent is an additive that must be used in the downhole shotcrete. The quality of the shotcrete will directly affect the quality of shotcrete. For many years, the quick-setting admixture used in the construction of Hegang Bureau’s underground shotcrete was all another quick-setting admixture. Using the quick-setting agent can basically meet the construction requirements. However, it has a greater impact on the late strength of shotcrete and also has some harm to the human body. To this end, after 1987, I Bureau of the selection of efficient 782 quick-setting agent price for underground injection of concrete additives, the construction effect is obvious. From 1987 to now have been using 1550t, shake and out of the concrete injection into a total cumulative 40000m.