PMID- 35407722
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220421
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 15
IP  - 7
DP  - 2022 Mar 24
TI  - Durability Improvement of Biocemented Sand by Fiber-Reinforced MICP for Coastal 
      Erosion Protection.
LID - 10.3390/ma15072389 [doi]
LID - 2389
AB  - 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.
FAU - Imran, Md Al
AU  - Imran MA
AUID- ORCID: 0000-0002-9175-6676
AD  - Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan.
FAU - Nakashima, Kazunori
AU  - Nakashima K
AD  - Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan.
FAU - Evelpidou, Niki
AU  - Evelpidou N
AUID- ORCID: 0000-0001-7817-4471
AD  - Faculty of Geology and Geoenvironment, National and Kapodistrian University of 
      Athens, 15784 Athens, Greece.
FAU - Kawasaki, Satoru
AU  - Kawasaki S
AUID- ORCID: 0000-0002-7984-928X
AD  - Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan.
LA  - eng
GR  - JP19H02229/JSPS KAKENHI/
PT  - Journal Article
DEP - 20220324
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC8999680
OTO - NOTNLM
OT  - MICP
OT  - biocement
OT  - coastal erosion protection
OT  - durability
OT  - fiber reinforcement
OT  - jute fiber
OT  - soil improvement
COIS- The authors declared no conflict of interest.
EDAT- 2022/04/13 06:00
MHDA- 2022/04/13 06:01
PMCR- 2022/03/24
CRDT- 2022/04/12 01:07
PHST- 2022/02/25 00:00 [received]
PHST- 2022/03/17 00:00 [revised]
PHST- 2022/03/22 00:00 [accepted]
PHST- 2022/04/12 01:07 [entrez]
PHST- 2022/04/13 06:00 [pubmed]
PHST- 2022/04/13 06:01 [medline]
PHST- 2022/03/24 00:00 [pmc-release]
AID - ma15072389 [pii]
AID - materials-15-02389 [pii]
AID - 10.3390/ma15072389 [doi]
PST - epublish
SO  - Materials (Basel). 2022 Mar 24;15(7):2389. doi: 10.3390/ma15072389.