过硫磷石膏矿渣水泥碳化后的强度变化  

Strength Change of Excess-sulfate Phosphogypsum Slag Cement Over Carbonization

作　　者：韩亚[1] 林宗寿[1] 

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070

出　　处：《建材世界》2016年第2期7-10,共4页The World of Building Materials

基　　金：国家"863"项目资助(编号:2012AA06A112)

摘　　要：以磷石膏和矿渣为主要组分的过硫磷石膏矿渣水泥具有良好的使用性能,可大量消耗磷石膏。但与普通硅酸盐水泥相比,其抗碳化性能较差。经深入研究发现,过硫磷石膏矿渣水泥石碳化后的强度损失不大,碳化7 d时强度降至最低,继续碳化强度可显著回升。当碳化后再次浸水养护时,其强度可出现很大幅度的提高,可显著大于碳化前的强度。With the phosphogypsum and slag as the main ingredient,the excess-sulfate phosphogypsum slag cement had a good performance. It can consume a lot of phosphogypsum. However,compared with ordinary Portland cement, its carbonization resistance is weak. After analyzing about the excess-sulfate phosphogypsum slag cement plaster, we found that there was little strength loss over carbonization. The lowest strength was found after 7 days,and then the carbonized strength rebounded significantly. When flooding after carbonization, the strength could be improved greatly, and it＇s higher than the strength before the carbonization.

关 键 词：过硫磷石膏矿渣水泥 碳化 强度 

分 类 号：TQ172.1[化学工程—水泥工业]