Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.conbuildmat.2018.03.255 |
Experimental investigation of solidifying desert aeolian sand using microbially induced calcite precipitation | |
Li, Duo1; Tian, Kan-liang2,3; Zhang, Hui-li1; Wu, Yu-yao2; Nie, Kang-yi1; Zhang, Shi-can1 | |
通讯作者 | Tian, Kan-liang |
来源期刊 | CONSTRUCTION AND BUILDING MATERIALS |
ISSN | 0950-0618 |
EISSN | 1879-0526 |
出版年 | 2018 |
卷号 | 172页码:251-262 |
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. |
英文关键词 | Microbially induced calcite precipitation Sporosarcina pasteurii Desert aeolian sand Solidification Bio-treatment |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000432768100025 |
WOS关键词 | CARBONATE PRECIPITATION ; SOIL ; STRENGTH ; CONCRETE ; CONSTRUCTION ; STABILIZATION ; REMEDIATION ; IMPROVEMENT ; SURFACE |
WOS类目 | Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary |
WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
来源机构 | 西北农林科技大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/208485 |
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]. 西北农林科技大学,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. |
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