测试了不同石粉含量对机制砂混凝土拌合物泌水率的影响。
It was investigated that the effects of the different content micro-fines on the bleeding rate in manufactured-sand fresh concrete.
研究了养护温度、时间及泌水率对灌浆材料结冰压的影响。
The effects of curing time, temperature and bleeding capacity on ice-formation pressure of grout were studied.
结果表明：机制砂与河砂泌水率随静置时间成对数关系变化；
The result shows that the bleeding rate of manufactured-sand and river-sand changes in logarithm relation with stewing time;
试验结果表明：一定颗粒分布的石灰石粉能改善新拌混凝土的流动性能，减少泌水率及缩短凝结时间。
It is shown that the limestone powder with appropriate particle distribution can improve the fluidity of concrete, reduce bleeding rate and shorten the setting time.
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.
FDN与木钙复合，以缓凝剂控制坍落度经时损失，以保水剂降低混凝土泌水率，配制出混凝土坍落度经时损失较小、性能优良的多元复合泵送剂。
An excellent pumping admixture was made up by use of FDN compounded with calcium lignosulphonate, retarder for controlling slump loss and water retaining admixture for reducing water segregation rate.
结果表明：JS J减缩剂能有效降低砂浆和混凝土的干缩，推迟和减少混凝土的开裂，适当提高砂浆和混凝土的强度，以及降低泌水率、提高耐久性等。
Results indicate that the admixture can reduce dry shrinkage effectively, delay or reduce concrete's cracks, improve comprehensive strength, reduce bleeding ratio and enhance durability etc.
结果表明：JS J减缩剂能有效降低砂浆和混凝土的干缩，推迟和减少混凝土的开裂，适当提高砂浆和混凝土的强度，以及降低泌水率、提高耐久性等。
Results indicate that the admixture can reduce dry shrinkage effectively, delay or reduce concrete's cracks, improve comprehensive strength, reduce bleeding ratio and enhance durability etc.
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