PMID- 36513740
OWN - NLM
STAT- MEDLINE
DCOM- 20221215
LR  - 20230115
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 12
IP  - 1
DP  - 2022 Dec 13
TI  - The impacts of biomineralization and oil contamination on the compressive 
      strength of waste plastic-filled mortar.
PG  - 21547
LID - 10.1038/s41598-022-25951-3 [doi]
LID - 21547
AB  - Researchers have made headway against challenges of increasing cement 
      infrastructure and low plastic recycling rates by using waste plastic in 
      cementitious materials. Past studies indicate that microbially induced calcium 
      carbonate precipitation (MICP) to coat plastic in calcium carbonate may improve 
      the strength. The objective of this study was to increase the amount of clean and 
      contaminated waste plastic that can be added to mortar and to assess whether MICP 
      treatment enhances the strength. The performance of plastic-filled mortar was 
      investigated at 5%, 10%, and 20% volume replacement for cement. Untreated, clean 
      plastics at a 20% cement replacement produced compressive strengths acceptable 
      for several applications. However, a coating of MICP on clean waste plastic did 
      not improve the strengths. At 10% replacement, both MICP treatment and washing of 
      contaminated plastics recovered compressive strengths by approximately 28%, 
      relative to mortar containing oil-coated plastics. By incorporating greater 
      volumes of waste plastics into mortar, the sustainability of cementitious 
      composites has the potential of being improved by the dual mechanisms of reduced 
      cement production and repurposing plastic waste.
CI  - (c) 2022. The Author(s).
FAU - Rux, Kylee
AU  - Rux K
AD  - Center for Biofilm Engineering, Montana State University, Bozeman, MT, 59717, 
      USA.
AD  - Civil and Environmental Engineering Department, Montana State University, 
      Bozeman, MT, 59717, USA.
FAU - Kane, Seth
AU  - Kane S
AD  - Center for Biofilm Engineering, Montana State University, Bozeman, MT, 59717, 
      USA.
AD  - Mechanical and Industrial Engineering Department, Montana State University, 
      Bozeman, MT, 59717, USA.
FAU - Espinal, Michael
AU  - Espinal M
AD  - Center for Biofilm Engineering, Montana State University, Bozeman, MT, 59717, 
      USA.
AD  - Mechanical and Industrial Engineering Department, Montana State University, 
      Bozeman, MT, 59717, USA.
FAU - Ryan, Cecily
AU  - Ryan C
AD  - Center for Biofilm Engineering, Montana State University, Bozeman, MT, 59717, 
      USA.
AD  - Mechanical and Industrial Engineering Department, Montana State University, 
      Bozeman, MT, 59717, USA.
FAU - Phillips, Adrienne
AU  - Phillips A
AD  - Center for Biofilm Engineering, Montana State University, Bozeman, MT, 59717, 
      USA.
AD  - Civil and Environmental Engineering Department, Montana State University, 
      Bozeman, MT, 59717, USA.
FAU - Heveran, Chelsea
AU  - Heveran C
AD  - Center for Biofilm Engineering, Montana State University, Bozeman, MT, 59717, 
      USA. chelsea.heveran@montana.edu.
AD  - Mechanical and Industrial Engineering Department, Montana State University, 
      Bozeman, MT, 59717, USA. chelsea.heveran@montana.edu.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20221213
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
RN  - 0 (Plastics)
RN  - H0G9379FGK (Calcium Carbonate)
SB  - IM
MH  - Compressive Strength
MH  - *Plastics
MH  - *Construction Materials
MH  - Biomineralization
MH  - Calcium Carbonate
PMC - PMC9747956
COIS- The authors declare no competing interests.
EDAT- 2022/12/14 06:00
MHDA- 2022/12/16 06:00
PMCR- 2022/12/13
CRDT- 2022/12/13 23:28
PHST- 2022/09/26 00:00 [received]
PHST- 2022/11/25 00:00 [accepted]
PHST- 2022/12/13 23:28 [entrez]
PHST- 2022/12/14 06:00 [pubmed]
PHST- 2022/12/16 06:00 [medline]
PHST- 2022/12/13 00:00 [pmc-release]
AID - 10.1038/s41598-022-25951-3 [pii]
AID - 25951 [pii]
AID - 10.1038/s41598-022-25951-3 [doi]
PST - epublish
SO  - Sci Rep. 2022 Dec 13;12(1):21547. doi: 10.1038/s41598-022-25951-3.