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讨论高强泵送混凝土强度和坍落度的影响因素,根据试验数据总结出混凝土强度经验公式。采取滞后掺加泵送剂工艺,可显著减少混凝土坍落度损失;对因运输延误等特殊情况引起的坍落度损失过大,采用少量泵送剂后掺工艺是有效的弥补措施.
The influencing factors of the strength and slump of high strength pumping concrete are discussed. Based on the experimental data, empirical formulas of concrete strength are summarized. Adopting hysteresis mixing pumping process can significantly reduce the slump loss of concrete; for slump loss caused by special circumstances such as transportation delay is too large, a small amount of pumping agent after doping process is an effective remedy.