Durability Improvement of Biocemented Sand by Fiber-Reinforced MICP for Coastal Erosion Protection

Al Imran, Md; Nakashima, Kazunori; Evelpidou, Niki; Kawasaki, Satoru

Durability Improvement of Biocemented Sand by Fiber-Reinforced MICP for Coastal Erosion Protection

Al Imran, Md; Nakashima, Kazunori; Evelpidou, Niki et al.

Materials, 2022, 15(7), 2389

Permalink : https://hdl.handle.net/2115/85492

このアイテムのアクセス数:427件（2026-01-16 20:57 集計）

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https://doi.org/10.3390/ma15072389

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アクセス権	metadata only access
URI	https://hdl.handle.net/2115/85492
タイトル	Durability Improvement of Biocemented Sand by Fiber-Reinforced MICP for Coastal Erosion Protection
著者	Al Imran, Md ; Nakashima, Kazunori ; Evelpidou, Niki ; Kawasaki, Satoru
著者名 Al Imran, Md
著者名 Nakashima, Kazunori
著者名 Evelpidou, Niki
e-Rad_Researcher 00304022 著者名 Kawasaki, Satoru
言語	英語
キーワード	MICP
	jute fiber
	durability
	soil improvement
	biocement
	fiber reinforcement
	coastal erosion protection
発行日	2022-04
出版者	MDPI
収録物名	Materials
巻(号)	15(7)
ページ	2389
抄録	Soil improvement via MICP (microbially induced carbonate precipitation) technologies has recently received widespread attention in the geoenvironmental and geotechnical fields. The durability of MICP-treated samples remains a critical concern in this novel method. In this work, fiber (jute)-reinforced MICP-treated samples were investigated to evaluate their durability under exposure to distilled water (DW) and artificial seawater (ASW), so as to advance the understanding of long-term performance mimicking real field conditions, along with improvement of the MICP-treated samples for use in coastal erosion protection. Primarily, the results showed that the addition of fiber (jute) improved the durability of the MICP-treated samples by more than 50%. Results also showed that the wet-dry (WD) cyclic process resulted in adverse effects on the mechanical and physical characteristics of fiber-reinforced MICP-treated samples in both DW and ASW. The breakdown of calcium carbonates and bonding effects in between the sand particles was discovered to be involved in the deterioration of MICP samples caused by WD cycles, and this occurs in two stages. The findings of this study would be extremely beneficial to extend the insight and understanding of improvement and durability responses for significant and effective MICP treatments and/or re-treatments.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.3390/ma15072389