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Article: Recycling Polyethylene Terephthalate Wastes as Short Fibers in Strain-Hardening Cementitious Composites (SHCC)

TitleRecycling Polyethylene Terephthalate Wastes as Short Fibers in Strain-Hardening Cementitious Composites (SHCC)
Authors
KeywordsFiber surface treatment
Micromechanical modeling
Polyethylene terephthalate
Solid wastes recycling
Strain-Hardening Cementitious Composite
Issue Date2018
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jhazmat
Citation
Journal of Hazardous Materials, 2018, v. 357, p. 40-52 How to Cite?
AbstractAs an important portion of the total plastic waste bulk but lack of reuse and recycling, the enormous amounts of polyethylene terephthalate (PET) solid wastes have led to serious environmental issues. This study explores the feasibility of recycling PET solid wastes as short fibers in Strain-Hardening Cementitious Composites (SHCCs), which exhibit strain-hardening and multiple cracking under tension, and therefore have clear advantages over conventional concrete for many construction applications. Based on micromechanical modeling, fiber dispersion and alkali resistance, the size of recycled PET fibers was first determined. Then the hydrophobic PET surface was treated with NaOH solution followed by a silane coupling agent to achieve the dual purpose of improving the fiber/matrix interfacial frictional bond (from 0.64 MPa to 0.80 MPa) and enhancing the alkali resistance for applications in alkaline cementitious environment. With surface treatment, recycling PET wastes as fibers in SHCCs is a promising approach to significantly reduce the material cost of SHCCs while disposing hazardous PET wastes in construction industry.
Persistent Identifierhttp://hdl.handle.net/10722/262181
ISSN
2019 Impact Factor: 9.038
2015 SCImago Journal Rankings: 1.692
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLin, X-
dc.contributor.authorYu, J-
dc.contributor.authorLi, H-
dc.contributor.authorLam, JYK-
dc.contributor.authorShih, K-
dc.contributor.authorSham, IML-
dc.contributor.authorLeung, CKY-
dc.date.accessioned2018-09-28T04:54:39Z-
dc.date.available2018-09-28T04:54:39Z-
dc.date.issued2018-
dc.identifier.citationJournal of Hazardous Materials, 2018, v. 357, p. 40-52-
dc.identifier.issn0304-3894-
dc.identifier.urihttp://hdl.handle.net/10722/262181-
dc.description.abstractAs an important portion of the total plastic waste bulk but lack of reuse and recycling, the enormous amounts of polyethylene terephthalate (PET) solid wastes have led to serious environmental issues. This study explores the feasibility of recycling PET solid wastes as short fibers in Strain-Hardening Cementitious Composites (SHCCs), which exhibit strain-hardening and multiple cracking under tension, and therefore have clear advantages over conventional concrete for many construction applications. Based on micromechanical modeling, fiber dispersion and alkali resistance, the size of recycled PET fibers was first determined. Then the hydrophobic PET surface was treated with NaOH solution followed by a silane coupling agent to achieve the dual purpose of improving the fiber/matrix interfacial frictional bond (from 0.64 MPa to 0.80 MPa) and enhancing the alkali resistance for applications in alkaline cementitious environment. With surface treatment, recycling PET wastes as fibers in SHCCs is a promising approach to significantly reduce the material cost of SHCCs while disposing hazardous PET wastes in construction industry.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jhazmat-
dc.relation.ispartofJournal of Hazardous Materials-
dc.subjectFiber surface treatment-
dc.subjectMicromechanical modeling-
dc.subjectPolyethylene terephthalate-
dc.subjectSolid wastes recycling-
dc.subjectStrain-Hardening Cementitious Composite-
dc.titleRecycling Polyethylene Terephthalate Wastes as Short Fibers in Strain-Hardening Cementitious Composites (SHCC)-
dc.typeArticle-
dc.identifier.emailShih, K: kshih@hku.hk-
dc.identifier.authorityShih, K=rp00167-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jhazmat.2018.05.046-
dc.identifier.pmid29860104-
dc.identifier.scopuseid_2-s2.0-85044459689-
dc.identifier.hkuros292712-
dc.identifier.volume357-
dc.identifier.spage40-
dc.identifier.epage52-
dc.identifier.isiWOS:000440958900005-
dc.publisher.placeNetherlands-

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