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。
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