一目前,许多商品混凝土厂的产品质量波动甚大,商品混凝土产品主要是泵送混凝土,供其他施工方式应用的自卸混凝土一般所占比重不大,性能要求也比泵送混凝土降低许多,通常较少发生性能争议。泵送混凝土的工作性则经常受到泵工的抱怨和施工方的非议,保持泵送混凝土工作性良好成为 At present, the quality of products in many commercial concrete factories fluctuates greatly. Commercial concrete products are mainly pumping concrete. The proportion of self-empting concrete used in other construction methods generally accounts for a small proportion, and the performance requirements are also lower than those of pumping concrete, Fewer performance disputes. The workability of pumping concrete is often complained by the pump workers and the construction side of the criticism, to keep pumping concrete works well as