Experimental investigation of solidifying desert aeolian sand using microbially induced calcite precipitation
文献类型：期刊论文
| 作者 | Li, Duo1; Tian, Kan-liang2,3; Zhang, Hui-li1; Wu, Yu-yao2; Nie, Kang-yi1; Zhang, Shi-can1 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2018-05-30 |
| 卷号 | 172页码:251-262 |
| 关键词 | Microbially induced calcite precipitation Sporosarcina pasteurii Desert aeolian sand Solidification Bio-treatment |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2018.03.255 |
| 通讯作者 | Tian, Kan-liang(tiankanliang@163.com) |
| 英文摘要 | In this study, five different concentrations of solidification solution (0.5, 1.0, 1.5, 2.0 and 2.5 mol/L urea-CaCl2) were used to solidify desert aeolian sand by microbially induced calcite precipitation (MICP). As the concentration of solidification solution increased, the CaCO3 content increased, sand density increased, permeability was reduced and the unconfined compressive strength increased. Formation of CaCO3 was the primary cause of changes in the sand's properties. Specifically, CaCO3 filled the pores between the sand particles and the pore volume decreased. The CaCO3 formed in response to low concentrations (i.e., 0.5-1.0 mol/L) and high concentrations (i.e., 1.5-2.5 mol/L) of urea-CaCl2 solution played different roles in solidification of the structures. (C) 2018 Elsevier Ltd. All rights reserved. |
| WOS关键词 | INDUCED CARBONATE PRECIPITATION ; CLAY SOIL ; STRENGTH ; CONSTRUCTION ; IMPROVEMENT ; CONCRETE ; STABILIZATION ; SURFACE |
| 资助项目 | National Key Research and Development Program of China[2016YFE0203400] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000432768100025 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/54924]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Tian, Kan-liang |
| 作者单位 | 1.Northwest A&F Univ, Coll Water Conservancy & Construct Engn, Yangling, Shaanxi, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Duo,Tian, Kan-liang,Zhang, Hui-li,et al. Experimental investigation of solidifying desert aeolian sand using microbially induced calcite precipitation[J]. CONSTRUCTION AND BUILDING MATERIALS,2018,172:251-262. |
| APA | Li, Duo,Tian, Kan-liang,Zhang, Hui-li,Wu, Yu-yao,Nie, Kang-yi,&Zhang, Shi-can.(2018).Experimental investigation of solidifying desert aeolian sand using microbially induced calcite precipitation.CONSTRUCTION AND BUILDING MATERIALS,172,251-262. |
| MLA | Li, Duo,et al."Experimental investigation of solidifying desert aeolian sand using microbially induced calcite precipitation".CONSTRUCTION AND BUILDING MATERIALS 172(2018):251-262. |
入库方式： OAI收割
来源：地理科学与资源研究所
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