干旱区生态环境知识资源中心(Arid): Experimental Study on Optimization of Cementation Solution for Wind-Erosion Resistance Using the MICP Method

Arid

DOI	10.3390/su14031770
	Experimental Study on Optimization of Cementation Solution for Wind-Erosion Resistance Using the MICP Method
	Dagliya, Monika; Satyam, Neelima; Garg, Ankit
通讯作者	Satyam, N (corresponding author)，Indian Inst Technol Indore, Dept Civil Engn, Indore 453441, India. ; Garg, A (corresponding author)，Shantou Univ, Guangdong Engn Ctr Struct Safety & Hlth Monitorin, Shantou 515063, Peoples R China.
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2022
卷号	14 期号:3
英文摘要	In the present study, an environmentally friendly microbial-induced calcium carbonate precipitation (MICP) technique was explored to reinforce the desert sand using the stopped-flow pouring method. A detailed experimental study has been conducted with Sporosarcina (S.) pasteurii urease-producing bacteria with a 0.5 M cementation solution. To optimize the cementation solution, three different pore volumes (PV), i.e., 0.4, 0.6, and 0.8, were considered. The cementation solution was provided every 24 h and considered as one treatment cycle. The cylindrical specimen in three replicas was biotreated for 7, 14, and 21 days in 1:1 and 1:2 (diameter: height) ratios for determina-tion of split-tensile strength (STS) and unconfined compressive strength (UCS), respectively. Micro-structure characterization of untreated and biotreated sand was also examined using a scanning electron microscope (SEM) and energy-dispersive X-ray analysis (EDX). Rocklike behavior was ob-served for biotreated-sand samples using the UPV test. Test results for 21 days with 0.8 PV were 1340 kPa, 241 kPa, and 1762 m/s for UCS, STS, and UPV, respectively, with an average calcite content of 16.2%. Overall, the 0.5 M cementation solution with a 24 h treatment cycle, 0.8 PV with 7 days, and 0.4 PV with 14 days gave optimum treatment solution, and showed heavily cemented and rock-type behavior of the biotreated-sand sample.
英文关键词	MICP unconfined compressive strength S pasteurii calcite precipitation
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000755053700001
WOS关键词	SAND ; STRENGTH
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376442
作者单位	[Dagliya, Monika; Satyam, Neelima] Indian Inst Technol Indore, Dept Civil Engn, Indore 453441, India; [Garg, Ankit] Shantou Univ, Guangdong Engn Ctr Struct Safety & Hlth Monitorin, Shantou 515063, Peoples R China
推荐引用方式 GB/T 7714	Dagliya, Monika,Satyam, Neelima,Garg, Ankit. Experimental Study on Optimization of Cementation Solution for Wind-Erosion Resistance Using the MICP Method[J],2022,14(3).
APA	Dagliya, Monika,Satyam, Neelima,&Garg, Ankit.(2022).Experimental Study on Optimization of Cementation Solution for Wind-Erosion Resistance Using the MICP Method.SUSTAINABILITY,14(3).
MLA	Dagliya, Monika,et al."Experimental Study on Optimization of Cementation Solution for Wind-Erosion Resistance Using the MICP Method".SUSTAINABILITY 14.3(2022).