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；
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.
针对目前现状，我们在RPC中掺加碎石等粗骨料取代一部分石英砂，在对其受力性能影响不大的情况下降低其使用成本。
For the present situation, we RPC mixed with gravel and other coarse aggregate, in the performance of its small force to lower the cost of its use.
碎石取代部分轻骨料后，轻骨料混凝土强度虽有一定的提高，抗冻性能却下降较大。
Gravel to replace the part after the lightweight aggregate, lightweight aggregate concrete strength despite some improvement in performance has declined more antifreeze.
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