Quartz sand, lime, cement + plaster.
石英砂，石灰，水泥+石膏。
Ecological reactive powder concrete(ECO-RPC)was prepared by replacing 60% of cement with ultra-fine industrial waste powders and replacing ground fine quartz sands with natural sands.
用超细工业废渣取代60%的水泥，用普通黄砂取代磨细石英砂制备生态型RPC材料。
A research has been made on the effects of the grain size, crystallinity and quantity of crystal quartz in siliceous raw material on the burnability of cement raw meal.
研究了硅质原料中石英晶体大小、相对结晶度及数量对水泥生料易烧性的影响。
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