硅酸盐学报2017，Vol.45Issue(5)：674-678,5.DOI:10.14062/j.issn.0454-5648.2017.05.12
沸石细度对磷酸镁水泥固化体性能影响及133Cs固化机理
Effect of Zeolite Fineness on Properties of Magnesium Phosphate Cement Solidified Body and the Solidifying Mechanism for 133Cs
摘要
Abstract
Magnesium phosphate cement (MPC) modified by zeolite with different specific surface areas was used to solidify 133Cs.The compressive strength,soak resistance,free-thaw resistance,shock resistance and leaching resistance of solidified body were investigated.The phase composition and pore structure of the solidified body were analyzed.The results show that the strength of the solidified body with Cs firstly decreases and then increases,and the shock resistance enhances with the increase of the specific surface area of zeolite.The compressive strength of the solidified body decreases after free-thaw cycles or water immersion,but it is still greater than the value of the national standard.The solidifying effect of Cs can be enhanced by increasing the specific surface area of zeolite.Zeolite does not participate in the hydration reaction,but it can enhance the mechanical solidification and the adsorption for Cs+.关键词
磷酸钾镁水泥/沸石/比表面积/固化/模拟放射性核素铯Key words
magnesium potassium phosphate cement/zeolite/specific surface area/solidifying/simulated radioactive cesium分类
建筑与水利引用本文复制引用
姜自超,丁建华,汪宏涛,张时豪,戴丰乐..沸石细度对磷酸镁水泥固化体性能影响及133Cs固化机理[J].硅酸盐学报,2017,45(5):674-678,5.基金项目
国家自然科学基金项目(51272283) （51272283）
重庆市自然科学基金项目(cstc2012jjB50009). （cstc2012jjB50009）
