摘要
：研究了铬渣、矿渣复合硅酸盐水泥物理性能和含铬渣水泥试样中水溶性Ｃｒ６＋ 浸出浓度。结果表明，掺入铬渣对复合硅酸盐水泥早期强度有利，而矿渣对复合硅酸盐水泥后期强度的贡献优于铬渣。生产４２５Ｒ早强型铬渣、矿渣复合硅酸盐水泥最佳配合比为：铬渣１０％ ，矿渣２０％ ，石膏４％ ，熟料６６％ 。此外，含铬渣水泥试样水溶性Ｃｒ６＋ 的浸出浓度小于０．５ｍ ｇ／Ｌ。
The physical properities of composite Portland cement of chromate sludge and blast furnace slag and the leaching concentration of water soluble Cr 6+ from the cement samples have been determined.The results show that the mixing chromate sludge is good for the early strength of composite Portland cement and the blast furnace slag's contribution for the later strength of composite Portland cement is more than chromate sludge's.The best mix proportion of producing 425R early strength composite Portland cement of chromatte sludge and blast furnace slag is chromate sludge of 10%,blast furnace slag of 20%,gypsum of 4% and clinker of 66%.Otherwise,it was found that the leaching concentration of water soluble Cr 6+ in the cement samples of the mixing chromate sludge is not over 0.5mg/L.
出处
《矿产综合利用》
CAS
北大核心
2000年第1期41-44,共4页
Multipurpose Utilization of Mineral Resources
关键词
铬渣
矿渣
复合硅酸盐水泥
解毒
废物利用
Chromate sludge
Blast furnace slag
Composite Portland cement
Detoxication
