目前在我国,泵送工艺已成为商品混凝土的主要施工工艺,我国采用泵送混凝土比例已超过国际上平均值20％,达到30％。 泵送混凝土品质的改善和施工质量的提高与诸多因素有关,而其中最重要的因素之一是泵送剂品种和掺量的选用。如果泵送剂的品种和掺量选用得当,泵送混凝土在减水并达到施工所需的工作性,则混凝土的强度、耐久性提 At present, in China, the pumping process has become the main construction technology for commercial concrete. The proportion of concrete pumped in China has exceeded the average of 20% in the world and reaches 30%. The improvement of the quality of pumped concrete and the improvement of construction quality are related to many factors. One of the most important factors is the selection of the type and amount of pumping agent. If the type and amount of the pumping agent are selected properly, the pumped concrete is reduced in water and the workability required for the construction is achieved, and the strength and durability of the concrete are improved.