低pH值水泥基材料的性能及应用  

Properties and Applications of Low pH Value Cement-Based Material

作　　者：刘江峰 张翔宇 陈亮[2,3] 王驹 刘健[2,3] 任增增 LIU Jiangfeng;ZHANG Xiangyu;CHEN Liang;WANG Jv;LIU Jian;REN Zengzeng(The State Key Laboratory for GeoMechanics and Deep Underground Engineering,China University of Mining and Technology,Xuzhou 221116,Jiangsu,China;Beijing Research Institute of Uranium Geology,Beijing 100029,China;CAEA Innovation Center for Geological Disposal of High-Level Radioactive Waste,Beijing 100029,China;China Institute of Water Resources and Hydropower Research,Beijing 100038,China)

机构地区：[1]中国矿业大学,深部岩土力学与地下工程国家重点实验室,江苏徐州221116 [2]核工业北京地质研究院,北京100029 [3]国家原子能机构高放废物地质处置创新中心,北京100029 [4]中国水利水电科学研究院,北京100038

出　　处：《硅酸盐学报》2023年第11期2992-3004,共13页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金(52174133);核设施退役治理专项资助科研项目(科工二司[2020]194号)。

摘　　要：低pH值水泥基材料作为一种特殊水泥基材料主要应用于中低放射性废物和重金属污染物的固化以及高放废物处置库工程。本文对混合水泥、硅酸镁水泥和磷酸镁水泥3种不同类型的低pH值水泥基材料体系的孔溶液pH值的主要影响因素及变化规律进行了分析;总结了低pH值水泥基材料流动性、抗压强度、耐久性和固化性能的研究现状;并对低pH值水泥基材料在固化中低放射性废物和重金属污染物以及高放处置库工程中的应用进行了探讨。As a special cement-based material,low pH value cement-based materials are mainly used in the solidification engineering of medium and low radioactive waste,heavy metal pollutants and the engineering of high-level radioactive waste repositories.This review analyzed the main influencing factors and changes of pore solution pH value of blended Portland cement,magnesium silicate cement and magnesium phosphate cement.and summarized the current research work on the flowability,compressive strength,durability and solidification performance of low pH value cement-based materials.In addition,the application of low pH value cement-based materials in the solidification of low or medium radioactive waste and heavy metal contaminant and high-level radioactive repository engineering was also discussed.

关 键 词：低pH值水泥基材料 高放废物处置库 有害废物固化 材料性能 工程应用 

分 类 号：TQ172.7[化学工程—水泥工业]