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为了适应高层建(构)筑物和人型市政工程对高强泵送的要求,为商品混凝土开拓更广泛的市场,我们开展了新型混凝土外加剂的研究,用以解决以下4个问题: (1)研制的产品,必须适应商品混凝土搅拌站的生产工艺,不改动原工艺系统,不增加设备,节约投资。 (2)研制的产品,采用问步添加法,满足商品混凝土生产运输及泵送施工的要求,排除后添法给商品混凝土生产及运输带来的困难。 (3)研制的产品能利用市售425号矿
In order to meet the requirements for high-strength pumping of high-rise buildings (buildings) and human-type municipal projects, and to develop a wider market for commodity concrete, we have conducted research on new concrete admixtures to solve the following four problems: (1 The product developed must be adapted to the production process of a commercial concrete mixing plant, without changing the original process system, adding equipment, and saving investment. (2) The developed product adopts a step-by-step method to meet the requirements for the production, transportation, and pumping of the commercial concrete, and eliminates the difficulties caused by the subsequent addition method to the production and transportation of the commercial concrete. (3) The developed product can use commercially available No. 425 ore