EFFECTS OF ACIDIC AND ALKALINE POLLUTANTS ON THERMAL BEHAVIOUR, MICROSTRUCTURE AND MECHANICAL PROPERTIES OF CLAYS
文献类型：期刊论文
| 作者 | Zhao Ying; Xue Qiang ; Lu Haijun; Liu Lei
|
| 刊名 | ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL
 |
| 出版日期 | 2013 |
| 卷号 | 12期号:10页码:1903-1907 |
| 关键词 | acidic and alkaline solution clay microstructure mechanical properties thermal behaviour |
| ISSN号 | 1582-9596 |
| 英文摘要 | Thermal behaviour, microstructure and mechanical properties of the clay polluted by acidic and alkaline pollutants were investigated by thermogravimetric/differential thermal analysis (TG-DTA), scanning electronic microscope (SEM), mercury intrusion experiments, permeability coefficient and unconfined compressive strength tests. The clay polluted by alkaline solution presented distinct exothermic peaks at 304-310 degrees C, while it's not observed for the one polluted by acidic solution due to the decomposition of organics by acid. The porosity, specific surface area and permeability coefficient of the polluted clay increased and unconfined compressive strength decreased with the increase of acidity and alkalinity because of the corrosion of acidic and alkaline solution, and the acidic corrosion was stronger. The mercury ejection curves didn't coincide with the mercury injection curves, which indicated the existence of the residual pores and the ones with the shape of inkbottle. This study clearly demonstrated that the strong acid and alkali accelerated the chemical reaction between chemical solution and clay particles. Furthermore, the release of minerals caused the increase of the development of pores and microstructure change, and lead to the increase of permeability coefficient and the decrease of unconfined compressive strength. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000330190900004 |
| 出版者 | GH ASACHI TECHNICAL UNIV IASI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3521]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotechn Engn |
| 推荐引用方式 GB/T 7714 | Zhao Ying,Xue Qiang,Lu Haijun,et al. EFFECTS OF ACIDIC AND ALKALINE POLLUTANTS ON THERMAL BEHAVIOUR, MICROSTRUCTURE AND MECHANICAL PROPERTIES OF CLAYS[J]. ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL,2013,12(10):1903-1907. |
| APA | Zhao Ying,Xue Qiang,Lu Haijun,&Liu Lei.(2013).EFFECTS OF ACIDIC AND ALKALINE POLLUTANTS ON THERMAL BEHAVIOUR, MICROSTRUCTURE AND MECHANICAL PROPERTIES OF CLAYS.ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL,12(10),1903-1907. |
| MLA | Zhao Ying,et al."EFFECTS OF ACIDIC AND ALKALINE POLLUTANTS ON THERMAL BEHAVIOUR, MICROSTRUCTURE AND MECHANICAL PROPERTIES OF CLAYS".ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL 12.10(2013):1903-1907. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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