PMID- 32967316
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201023
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 13
IP  - 18
DP  - 2020 Sep 21
TI  - The Influence of the Addition of Plant-Based Natural Fibers (Jute) on Biocemented 
      Sand Using MICP Method.
LID - 10.3390/ma13184198 [doi]
LID - 4198
AB  - The microbial-induced carbonate precipitation (MICP) method has gained intense 
      attention in recent years as a safe and sustainable alternative for soil 
      improvement and for use in construction materials. In this study, the effects of 
      the addition of plant-based natural jute fibers to MICP-treated sand and the 
      corresponding microstructures were measured to investigate their subsequent 
      impacts on the MICP-treated biocemented sand. The fibers used were at 0%, 0.5%, 
      1.5%, 3%, 5%, 10%, and 20% by weight of the sand, while the fiber lengths were 5, 
      15, and 25 mm. The microbial interactions with the fibers, the CaCO(3) 
      precipitation trend, and the biocemented specimen (microstructure) were also 
      evaluated based on the unconfined compressive strength (UCS) values, scanning 
      electron microscopy (SEM), and fluorescence microscopy. The results of this study 
      showed that the added jute fibers improved the engineering properties (ductility, 
      toughness, and brittleness behavior) of the biocemented sand using MICP method. 
      Furthermore, the fiber content more significantly affected the engineering 
      properties of the MICP-treated sand than the fiber length. In this study, the 
      optimal fiber content was 3%, whereas the optimal fiber length was s 15 mm. The 
      SEM results indicated that the fiber facilitated the MICP process by bridging the 
      pores in the calcareous sand, reduced the brittleness of the treated samples, and 
      increased the mechanical properties of the biocemented sand. The results of this 
      study could significantly contribute to further improvement of fiber-reinforced 
      biocemented sand in geotechnical engineering field applications.
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 - Gowthaman, Sivakumar
AU  - Gowthaman S
AUID- ORCID: 0000-0002-9880-7886
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 - Kawasaki, Satoru
AU  - Kawasaki S
AUID- ORCID: 0000-0002-7984-928X
AD  - Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan.
LA  - eng
GR  - JSPS KAKENHI, grant number JP19H02229/Japan Society for the Promotion of Science/
PT  - Journal Article
DEP - 20200921
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC7560478
OTO - NOTNLM
OT  - MICP
OT  - biocement
OT  - jute
OT  - natural plant fiber
OT  - ureolytic bacteria
COIS- The authors declared no conflict of interest.
EDAT- 2020/09/25 06:00
MHDA- 2020/09/25 06:01
PMCR- 2020/09/21
CRDT- 2020/09/24 01:01
PHST- 2020/08/27 00:00 [received]
PHST- 2020/09/17 00:00 [revised]
PHST- 2020/09/18 00:00 [accepted]
PHST- 2020/09/24 01:01 [entrez]
PHST- 2020/09/25 06:00 [pubmed]
PHST- 2020/09/25 06:01 [medline]
PHST- 2020/09/21 00:00 [pmc-release]
AID - ma13184198 [pii]
AID - materials-13-04198 [pii]
AID - 10.3390/ma13184198 [doi]
PST - epublish
SO  - Materials (Basel). 2020 Sep 21;13(18):4198. doi: 10.3390/ma13184198.