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| 热活化与机械力活化对煤矸石胶凝性的影响 | |
| 引用本文： | 郭伟,李东旭,陈建华,杨南如.热活化与机械力活化对煤矸石胶凝性的影响[J].建筑材料学报,2011,14(3). |
| 作者姓名： | 郭伟 李东旭 陈建华 杨南如 |
| 作者单位： | 1. 盐城工学院材料工程学院,江苏盐城224051;南京工业大学材料科学与工程学院,江苏南京210009 2. 南京工业大学材料科学与工程学院,江苏南京,210009 3. 常熟理工学院化学与材料工程学院,江苏常熟,215500 |
| 基金项目： | 江苏省科技厅自然科学基金资助项目(BK2009671); 江苏省教育厅自然科学基金资助项目(07KJB430123); 江苏省生态环境材料重点建设实验室开放基金资助项目(XKY2009033) |
| 摘 要： | 用X射线衍射(XRD)、热分析(TG-DSC)、扫描电镜(SEM)等方法,研究了热活化、机械力活化及未活化煤矸石水泥的胶凝性能.结果表明,热活化能显著改善煤矸石的胶凝性,对热活化煤矸石再进行机械力活化能进一步提高其胶凝性;活化煤矸石可为熟料水化产物的形成提供成核基点从而加快熟料早期的水化;煤矸石水泥浆体中Ca(OH)_2含量由熟料析出Ca(OH)_2与煤矸石吸收Ca(OH)_2的能力竞争决定.此外,煅烧煤矸石中活性Al的存在,会增加水化产物中钙矾石(AFt)的含量.分析指出,热活化是煤矸石活化的必要条件,而机械力活化是其充分条件. |
| 关 键 词： | 煤矸石 活化 水化 |
Effect of Heat Activated and Mechanical Force Activated Method on Coal Gangue Cementing Performance |
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| GUO Wei,LI Dong-xu,CHEN Jian-hua,YANG Nan-ru.Effect of Heat Activated and Mechanical Force Activated Method on Coal Gangue Cementing Performance[J].Journal of Building Materials,2011,14(3). | |
| Authors: | GUO Wei LI Dong-xu CHEN Jian-hua YANG Nan-ru |
| Affiliation: | GUO Wei~(1,2),LI Dong-xu~2,CHEN Jian-hua~3,YANG Nan-ru~2 (1.School of Materials Engineering,Yancheng Institute of Technology,Yancheng 224051,China,2.College of Materials Science and Engineering,Nanjing University of Technology,Nanjing 210009,3.School of Chemistry and Materials Engineering,Changshu Institute of Technology,Changshu 215500,China) |
| Abstract: | Heat activated,mechanical force activated coal gangue were used to produce coal gangue cements (CGC).The cementitious properties of CGC were investigated by XRD,TG-DSC and SEM.Results show that the cementitious performance of gangue is greatly improved through the heat activation.The cementitious performance of CGC can be further improved if the mechanical force activation method is employed to activate the heat activated coal gangue.The activated coal gangue provides the base point of nucleation to form hy... |
| Keywords: | coal gangue activation hydration |
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