高钙质工业废料用于烧结砖的试验研究(一)

【摘要】 某些工业废料如粉煤灰、硬质钢渣、煤矸石中的氧化钙含量超过 10 % ,按国内一般惯例认为这类原材料不宜用于烧结砖的生产 ,因而多年来限制了这类材料在烧结砖中的正常应用。但从国外相关研究资料看 ,当原材料中碳酸盐含量高达 30 %～ 35 %时 ,仍然可生产出高质量的烧结砖[4 ] 。文章针对这一问题对高钙硬质钢渣及高钙质粉煤灰是否可用于烧结砖的可行性进行了研究。研究结果表明 :只要技术处理得当 ,这类高钙质工业废料完全可以用于烧结砖的生产。更多还原

【Abstract】 The paper discusses the feasibility on utilizing high-calcium industrial wastes in fired brick. In China, industrial wastes with over 10% calcium oxide is not regarded as raw materials for producing brick, so it is limited to use industrial wastes. But in the other countries, industrial wastes with 30 %～35 % calcium oxide can also be used to produce high quality brick. The paper gives out the ideas that high-calcium industrial wastes can be used to produce fired brick by good raw material preparation process.更多还原