掺矿渣掺合料和粉煤灰高强混凝土强度和可泵性的研究

Study on the strength and pumping performance of high strength concrete with slay and fly-ash

本文通过对试验结果的分析,讨论了在常规的材料及通用的工艺方法条件下矿渣掺合料、粉煤灰和减水剂对高强混凝土强度和可泵性的影响.阐述了使高强混凝土各组分充分发挥效应的最佳组合的确定.给出了采用倒置坍落度筒测定拌合物全部流出所需时间,辅以扩展度和坍落度,来评价混凝土可泵性能的手段.

The paper discusss the effect of sky, fly- ash and setretarder superplasticizer on the high strength concrete under the comonly technical way and conventional material used. It shows the best combination for each part of the high strength concrete to have its full effect. And it gives the methods of evaculating the pumping of concrete according to inverted slump instrument with the use of slump and expansion.