PMID- 33924557
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240401
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 14
IP  - 8
DP  - 2021 Apr 13
TI  - Biomineralization of Plastic Waste to Improve the Strength of Plastic-Reinforced 
      Cement Mortar.
LID - 10.3390/ma14081949 [doi]
LID - 1949
AB  - The development of methods to reuse large volumes of plastic waste is essential 
      to curb the environmental impact of plastic pollution. Plastic-reinforced 
      cementitious materials (PRCs), such as plastic-reinforced mortar (PRM), may be 
      potential avenues to productively use large quantities of low-value plastic 
      waste. However, poor bonding between the plastic and cement matrix reduces the 
      strength of PRCs, limiting its viable applications. In this study, calcium 
      carbonate biomineralization techniques were applied to coat plastic waste and 
      improved the compressive strength of PRM. Two biomineralization treatments were 
      examined: enzymatically induced calcium carbonate precipitation (EICP) and 
      microbially induced calcium carbonate precipitation (MICP). MICP treatment of 
      polyethylene terephthalate (PET) resulted in PRMs with compressive strengths 
      similar to that of plastic-free mortar and higher than the compressive strengths 
      of PRMs with untreated or EICP-treated PET. Based on the results of this study, 
      MICP was used to treat hard-to-recycle types 3-7 plastic waste. No plastics 
      investigated in this study inhibited the MICP process. PRM samples with 5% 
      MICP-treated polyvinyl chloride (PVC) and mixed type 3-7 plastic had compressive 
      strengths similar to plastic-free mortar. These results indicate that MICP 
      treatment can improve PRM strength and that MICP-treated PRM shows promise as a 
      method to reuse plastic waste.
FAU - Kane, Seth
AU  - Kane S
AUID- ORCID: 0000-0002-6940-1369
AD  - Mechanical and Industrial Engineering Department, Montana State University, 
      Bozeman, MT 59717, USA.
AD  - Center for Biofilm Engineering, Montana State University, Bozeman, MT 59717, USA.
FAU - Thane, Abby
AU  - Thane A
AUID- ORCID: 0000-0003-1821-5758
AD  - Center for Biofilm Engineering, Montana State University, Bozeman, MT 59717, USA.
FAU - Espinal, Michael
AU  - Espinal M
AUID- ORCID: 0000-0003-1223-1431
AD  - Mechanical and Industrial Engineering Department, Montana State University, 
      Bozeman, MT 59717, USA.
AD  - Center for Biofilm Engineering, Montana State University, Bozeman, MT 59717, USA.
FAU - Lunday, Kendra
AU  - Lunday K
AD  - Capital High School, Helena, MT 59601, USA.
FAU - Armagan, Hakan
AU  - Armagan H
AD  - Omaha Burke High School, Omaha, NE 68154, USA.
FAU - Phillips, Adrienne
AU  - Phillips A
AUID- ORCID: 0000-0002-3291-710X
AD  - Center for Biofilm Engineering, Montana State University, Bozeman, MT 59717, USA.
AD  - Civil Engineering Department, Montana State University, Bozeman, MT 59717, USA.
FAU - Heveran, Chelsea
AU  - Heveran C
AUID- ORCID: 0000-0002-1406-7439
AD  - Mechanical and Industrial Engineering Department, Montana State University, 
      Bozeman, MT 59717, USA.
AD  - Center for Biofilm Engineering, Montana State University, Bozeman, MT 59717, USA.
FAU - Ryan, Cecily
AU  - Ryan C
AUID- ORCID: 0000-0001-8335-2287
AD  - Mechanical and Industrial Engineering Department, Montana State University, 
      Bozeman, MT 59717, USA.
AD  - Center for Biofilm Engineering, Montana State University, Bozeman, MT 59717, USA.
LA  - eng
GR  - EEC-161008/National Science Foundation/
GR  - ECCS-1542210/National Science Foundation/
PT  - Journal Article
DEP - 20210413
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC8069578
OTO - NOTNLM
OT  - cement
OT  - concrete
OT  - microbial-induced calcium carbonate precipitation
OT  - plastic recycling
OT  - plastic waste
OT  - plastic-reinforced concrete
OT  - valorization
COIS- The authors declare no conflict of interest. The funders had no role in the 
      design of the study; in the collection, analyses, or interpretation of data; in 
      the writing of the manuscript; or in the decision to publish the results.
EDAT- 2021/05/01 06:00
MHDA- 2021/05/01 06:01
PMCR- 2021/04/13
CRDT- 2021/04/30 01:29
PHST- 2021/02/28 00:00 [received]
PHST- 2021/04/03 00:00 [revised]
PHST- 2021/04/07 00:00 [accepted]
PHST- 2021/04/30 01:29 [entrez]
PHST- 2021/05/01 06:00 [pubmed]
PHST- 2021/05/01 06:01 [medline]
PHST- 2021/04/13 00:00 [pmc-release]
AID - ma14081949 [pii]
AID - materials-14-01949 [pii]
AID - 10.3390/ma14081949 [doi]
PST - epublish
SO  - Materials (Basel). 2021 Apr 13;14(8):1949. doi: 10.3390/ma14081949.