通过混凝土坍落度试验，从水泥、粉煤灰及塑化剂三方面研究了水泥及粉煤灰与塑化剂的适应性问题。
Compatibility of cement and pfa with plasticizer was studied through the slump test of concrete from the aspects of cement, pfa and plasticizer.
试验结果显示：从坍落度方面考虑，粉煤灰的掺量应该在30%左右或大于30%为最佳。
Laboratory test showed that: In consideration of slump, the optimization content of the fly ash was around 30% or more than 30%.
通过水泥净浆试验比较选择了减水率高、坍落度损失小、与水泥适应性好的氨基苯磺酸盐高效减水剂；
Aminobenzenesulfonic acid super-plasticizer is selected though cement paste test, which be provided with high water-reducing property, low slump loss and good compatibility with cement.
对配合比相同和坍落度相同两种情况下，不同再生骨料掺入量混凝土的基本性能进行了系统的试验研究。
Experimental work was conducted to investigate the basic physical and mechanical properties of concrete with different percentage of recycled aggregate.
通过对充填料坍落度、流动性、强度等指标的试验及充填效果分析，认为该充填新工艺可靠、实用。
From experiments of intensity, fluidity, collapsibility of the filling materials, it showed that the new filling method was reliable.
试验结果表明，复合使用高效减水剂和缓凝剂，能有效控制混凝土坍落度经时损失。
Experiment results showed that compound use of efficient water-reducing admixture and retarding agent can efficiently control the pumped concrete slump loses through time.
试验中再生骨料的掺入量分别为0，25%，50%，75%和100%，通过调节用水量使各组混凝土达到相同的坍落度。
In the tests, the mixed recycled aggregates range respectively from 0,25%, 50%, 75% to 100%, and the same concrete slump values are get by adjusting water dosage.
获得数据指标的试验方法是根据GB8076- 1997规定试验方法，包括：泌水率、坍落度、凝结时间差、抗压强度比、收缩率等。
The testing method of acquiring the data guide lines is based on provision of GB8076-1997 including bleeding rate, slump, concreting time. ratio of compressive strength. shrinkage rate and so on.
获得数据指标的试验方法是根据GB8076- 1997规定试验方法，包括：泌水率、坍落度、凝结时间差、抗压强度比、收缩率等。
The testing method of acquiring the data guide lines is based on provision of GB8076-1997 including bleeding rate, slump, concreting time. ratio of compressive strength. shrinkage rate and so on.
应用推荐