The diabase gravel almost was laminated cleavage, so the quality of aggregate by impurities and crushing was bad, segregation and bleeding of concrete made by the aggregate was heavy.
辉绿岩多为层状解理，决定了轧制或破碎的碎石骨料的质量较差，配制的混凝土离析和泌水严重；
This paper studies the reasons for low strength of post- placed aggregate concrete, and points oat that great bleeding is the main reason for low strength of the concrete.
对压浆混凝土存在的强度偏低现象进行了研究，指出了泌水量大是压浆混凝土强度较低的主要原因。
It was investigated that the effects of the different content micro-fines on the bleeding rate in manufactured-sand fresh concrete.
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。
When high flowing pump concrete of C60 is produced, more water and water reducing agent is used. So it often appears segregation and bleeding.
配制C60高流态泵送砼时，需要采用较大用水量和减水剂掺量，故拌合物常有离析和泌水趋势。
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.
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.
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。
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