PMID- 33260644
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201212
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 13
IP  - 23
DP  - 2020 Nov 28
TI  - Effect of Jute Fibres on the Process of MICP and Properties of Biocemented Sand.
LID - 10.3390/ma13235429 [doi]
LID - 5429
AB  - There has been increasing interest, in the past decade, in bio-mediated 
      approaches to soil improvement for geotechnical applications. Microbially induced 
      calcium carbonate precipitation (MICP) has been investigated as a potentially 
      sustainable method for the strengthening and stabilisation of soil structures. 
      This paper presents the results of a study on the effect of jute fibres on both 
      the MICP process and properties of biocemented sand. Ureolytic Sporosarcina 
      pasteurii has been used to produce biocemented soil columns via MICP in the 
      laboratory. Results showed that columns containing 0.75% (by weight of sand) 
      untreated jute fibres had unconfined compressive strengths approximately six 
      times greater on average compared to biocemented sand columns without jute 
      fibres. Furthermore, efficiency of chemical conversion was found to be higher in 
      columns containing jute fibres, as measured using ion chromatography. Columns 
      containing jute had calcimeter measured CaCO(3) contents at least three times 
      those containing sand only. The results showed that incorporation of jute fibres 
      into the biocemented sand material had a beneficial effect, resulting in 
      stimulation of bacterial activity, thus sustaining the MICP process during the 
      twelve-day treatment process. This study also explores the potential of jute 
      fibres in self-healing MICP systems.
FAU - Spencer, Christine Ann
AU  - Spencer CA
AUID- ORCID: 0000-0002-3432-4244
AD  - School of Engineering, Cardiff University, Cardiff CF24 3AA, UK.
FAU - van Paassen, Leon
AU  - van Paassen L
AD  - Center for Bio-Mediated and Bio-Inspired Geotechnics (CBBG), Arizona State 
      University, Tempe, AZ 85287-3005, USA.
FAU - Sass, Henrik
AU  - Sass H
AUID- ORCID: 0000-0001-8740-4224
AD  - School of Earth and Ocean Sciences, Cardiff University, Cardiff CF10 3AT, UK.
LA  - eng
PT  - Journal Article
DEP - 20201128
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC7729919
OTO - NOTNLM
OT  - MICP
OT  - biocementation
OT  - jute fibres
OT  - self-healing
OT  - sustainable geotechnics
OT  - unconfined compressive strength
OT  - urea hydrolysis
COIS- The authors declare no conflict of interest.
EDAT- 2020/12/03 06:00
MHDA- 2020/12/03 06:01
PMCR- 2020/11/28
CRDT- 2020/12/02 01:01
PHST- 2020/11/01 00:00 [received]
PHST- 2020/11/23 00:00 [revised]
PHST- 2020/11/24 00:00 [accepted]
PHST- 2020/12/02 01:01 [entrez]
PHST- 2020/12/03 06:00 [pubmed]
PHST- 2020/12/03 06:01 [medline]
PHST- 2020/11/28 00:00 [pmc-release]
AID - ma13235429 [pii]
AID - materials-13-05429 [pii]
AID - 10.3390/ma13235429 [doi]
PST - epublish
SO  - Materials (Basel). 2020 Nov 28;13(23):5429. doi: 10.3390/ma13235429.