研究了赤泥对碱矿渣水泥固化体(AASS)以及硅酸盐水泥固化体(PCS)在力学性能、Cs+浸出性能、抗冻融性能、抗冲击性能以及干燥收缩性能方面的影响.试验结果表明:赤泥对碱矿渣水泥的流动性影响不大,而赤泥严重影响PCS的流动性,掺入30％时流动度降低51.9％.10％赤泥掺量有利于PCS和AASS的力学性能,继续提高掺量则不利于固化体的力学性能.当赤泥掺量低于30％时可降低AASS中Cs+的浸出性,PCS的浸出性随赤泥掺量的增加而提高.AASS的抗冻融性能及抗冲击性能均满足相关标准要求.赤泥提高了AASS的干燥收缩率.将赤泥用于碱矿渣水泥固化体具有可行性.
参考文献
| [1] | A.M. El-Kamash;M.R. El-Naggar;M.I. El-Dessouky .Immobilization of cesium and strontium radionuclides in zeolite-cement blends[J].Journal of hazardous materials,2006(2):310-316. |
| [2] | 李玉香,全明,易发成,肖正学,陈雅斓.水泥固化体中CS+浸出行为研究[J].原子能科学技术,2011(03):282-287. |
| [3] | 王冬,严生.碱矿渣水泥固化模拟高放射性废液中Cs+的作用机理[J].硅酸盐学报,2004(01):90-94. |
| [4] | Fernandez-Jimenez A;Macphee DE;Lachowski EE;Palomo A .Immobilization of cesium in alkaline activated fly ash matrix[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2005(2/3):185-193. |
| [5] | Study of leaching mechanisms of caesium ions incorporated in Ordinary Portland Cement[J].Journal of hazardous materials,2009(1/3):1024. |
| [6] | A. Jenni;N.C. Hyatt .Encapsulation of caesium-loaded Ionsiv in cement[J].Cement and Concrete Research,2010(8):1271-1277. |
| [7] | Qin Li;Zengqing Sun;Dejing Tao;Yan Xu;Peiming Li;Hao Cui;Jianping Zhai .Immobilization of simulated radionuclide 133Cs~+ by fly ash-based geopolymer[J].Journal of hazardous materials,2013(Nov.15):325-331. |
| [8] | Ramesh Chandra Sahu;Rajkishore Patel;Bankim Chandra Ray .Removal of hydrogen sulfide using red mud at ambient conditions[J].Fuel Processing Technology,2011(8):1587-1592. |
| [9] | 孙文标,冯向鹏,易忠来.赤泥基胶凝材料钙硅比对Na+固化性能的影响[J].金属矿山,2008(06):130-137,144. |
| [10] | Na Zhang;Xiaoming Liu;Henghu Sun .Pozzolanic behaviour of compound-activated red mud-coal gangue mixture[J].Cement and Concrete Research,2011(3):270-278. |
| [11] | Liu YanJu;Ravi Naidu;Ming Hui .Red mud as an amendment for pollutants in solid and liquid phases.[J].Geoderma: An International Journal of Soil Science,2011(1/2):1-12. |
| [12] | 张书武,刘昌俊,栾兆坤,彭先佳,王艳青.铁改性赤泥吸附剂的制备及其除砷性能研究[J].环境科学学报,2007(12):1972-1977. |
| [13] | Qian Guangren;Li Yuxiang;Y i Facheng;Shi Rongming .Improvement of metakaolin on radioactive Sr and Cs immobilization of alkali-activated slag matrix[J].Journal of hazardous materials,2002(3):289-300. |
| [14] | 陈科,杨长辉,潘群,赵爽,于泽东.碱-矿渣水泥砂浆的干缩特性[J].重庆大学学报：自然科学版,2012(05):64-68. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%