磷石膏烧结性能研究  

Study on sintering performance of phosphogypsum

作　　者：宋焕成[1] 苏剑华[1] 蒋鸿[1] 李伯刚[1] 

机构地区：[1]四川大学 材料科学与工程学院,四川成都610064

出　　处：《磷肥与复肥》2013年第4期28-29,31,共3页Phosphate & Compound Fertilizer

摘　　要：为探索磷石膏建材利用的新途径,研究湖北、贵州、云南3种矿源副产磷石膏的烧结性能。结果显示,磷石膏具有一定的自烧结性,不同来源的磷石膏烧结性能差别很大;添加2%的烧结助剂,3种磷石膏烧结性能均大幅度提高,抗压强度最高可达(39.970±3.026)MPa,表明用磷石膏可烧制出符合国家标准的承重墙体砖。For exploring the new ways of phosphogypsum as building materials, the sintermg performance of byproduct phosphogypsum of Hubei, Guizhou, Yunnan phosphate rock and analytical grade gypsum are studied. The results show that the sintering performance of four kinds of gypsum is different, by adding the sintering additives with the amount of 2% to phosphogypsum, the sintering performance of three kinds of phosphogypsum is substantially improved and the maximum compressive strength is up to （39.970±3.026） MPa, which shows that the phosphogypsum can be completely sintered for brick bearing walls in line with national standard.

关 键 词：磷石膏 烧缩率 抗压强度 烧结石膏砖 

分 类 号：TQ177.3[化学工程—硅酸盐工业]