PMID- 30314319
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201001
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 11
IP  - 10
DP  - 2018 Oct 11
TI  - Potential Use of Plastic Wastes for Low Thermal Conductivity Concrete.
LID - 10.3390/ma11101938 [doi]
LID - 1938
AB  - The use of plastics has increased over the years, thus resulting in a large 
      volume of plastic waste being generated and accumulated in the environment. Due 
      to its non-biodegradability and persistence, recycling processes have become one 
      of the sustainable solutions for preventing environmental deterioration. Plastic 
      wastes, including high density polyethylene (HDPE), low density polyethylene 
      (LDPE), polypropylene (PP), and polyethylene terephthalate (PET), were collected 
      from industrial sector and used as additional ingredients to improve concrete 
      properties. Prior to concrete processing, an increase in wettability of plastic 
      fibers using nonionic surfactant, Dehydol LS-12, was investigated. At the optimal 
      concentration of 10 times of the critical micelle concentration (CMC), an 
      interfacial tension and a contact angle were reduced to 31(-)32 mN/m and 65 degrees (-)68 degrees , 
      respectively. Properties of concrete were determined and compared to those of the 
      mortar samples. Porosity was found to increase with higher volume fraction of 
      plastic fibers, whereas decreases in workability, bulk density, thermal 
      conductivity, splitting tensile strength, and compressive strength were 
      encountered. The lowest thermal conductivity was recorded for concrete samples 
      prepared with 30% by volume of LDPE fibers, and the rest in descending order were 
      HDPE, PP, and PET, respectively. Furthermore, the maximal inclusions of plastic 
      fibers were 5% for HDPE and LDPE, 10% for PP, and 50% for PET so as to satisfy 
      the precast concrete wall requirements.
FAU - Poonyakan, Artid
AU  - Poonyakan A
AUID- ORCID: 0000-0003-0965-7538
AD  - International Programs in Hazardous Substance and Environmental Management, 
      Graduate School, Chulalongkorn University, Bangkok 10330, Thailand. 
      atidkung@hotmail.com.
AD  - Center of Excellence on Hazardous Substance Management (HSM), Chulalongkorn 
      University, Bangkok 10330, Thailand. atidkung@hotmail.com.
FAU - Rachakornkij, Manaskorn
AU  - Rachakornkij M
AUID- ORCID: 0000-0002-0581-9248
AD  - Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn 
      University, Bangkok 10330, Thailand. manaskorn@gmail.com.
FAU - Wecharatana, Methi
AU  - Wecharatana M
AD  - Civil and Environmental Engineering Department, New Jersey Institute of 
      Technology, Newark, NJ 07102, USA. methi.wecharatana@njit.edu.
FAU - Smittakorn, Watanachai
AU  - Smittakorn W
AD  - Department of Civil Engineering, Faculty of Engineering, Chulalongkorn 
      University, Bangkok 10330, Thailand. fcewsk@eng.chula.ac.th.
LA  - eng
PT  - Journal Article
DEP - 20181011
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC6213514
OTO - NOTNLM
OT  - building material
OT  - low thermal conductivity concrete
OT  - plastic waste utilization
COIS- The authors declare no conflict of interest.
EDAT- 2018/10/14 06:00
MHDA- 2018/10/14 06:01
PMCR- 2018/10/11
CRDT- 2018/10/14 06:00
PHST- 2018/09/15 00:00 [received]
PHST- 2018/10/05 00:00 [revised]
PHST- 2018/10/09 00:00 [accepted]
PHST- 2018/10/14 06:00 [entrez]
PHST- 2018/10/14 06:00 [pubmed]
PHST- 2018/10/14 06:01 [medline]
PHST- 2018/10/11 00:00 [pmc-release]
AID - ma11101938 [pii]
AID - materials-11-01938 [pii]
AID - 10.3390/ma11101938 [doi]
PST - epublish
SO  - Materials (Basel). 2018 Oct 11;11(10):1938. doi: 10.3390/ma11101938.