Show simple item record

dc.contributor.authorOzcelikci, E.
dc.contributor.authorKul, A.
dc.contributor.authorGunal, M.F.
dc.contributor.authorOzel, B.F.
dc.contributor.authorYildirim, Gurkan
dc.contributor.authorAshour, Ashraf
dc.contributor.authorSahmaran, M.
dc.date.accessioned2023-02-20T15:22:06Z
dc.date.accessioned2023-03-15T16:26:15Z
dc.date.available2023-02-20T15:22:06Z
dc.date.available2023-03-15T16:26:15Z
dc.date.issued2023-04
dc.identifier.citationOzcelikci E, Kul A, Gunal MF et al (2023) A comprehensive study on the compressive strength, durability-related parameters and microstructure of geopolymer mortars based on mixed construction and demolition waste. Journal of Cleaner Production. 396: 136522.en_US
dc.identifier.urihttp://hdl.handle.net/10454/19346
dc.descriptionYesen_US
dc.description.abstractAs a viable option to upcycle construction and demolition waste (CDW) into value-added materials, geopolymer technology is emerging. Most studies investigate CDWs in a separated form or in combination with mainstream pozzolanic/cementitious materials focusing only on fundamental properties of geopolymer pastes, not considering to scale such materials to the level of their application in the forms of structural mortars/concretes or to characterize long-term performance/durability. This study investigated the development and characterization of ambient-cured mortars with mixed CDW-based geopolymer binders and untreated fine recycled concrete aggregates (FRCA). Mixture of CDW-based roof tile (RT), red clay brick (RCB), hollow brick (HB), concrete (C), and glass (G) was used as the precursor, while ground granulated blast furnace slag (S) was used in some mixtures to partly replace CDW precursors. Compressive strength, durability-related parameters including drying shrinkage, water absorption, and efflorescence, microstructure and materials sustainability were evaluated. Results showed that 28 d compressive strength results above 30 and 50 MPa is achievable with the entirely CDW-based and slag-substituted mortars, which were found improvable to have entirely CDW-based structural concretes. Drying shrinkage of the mortars is slightly higher than that of conventional cementitious/geopolymeric systems although it can be minimized significantly through mixture optimization. Water absorption values remain comparable with the literature. CDW-based geopolymer mortars outperform Portland cement mortars in terms of CO2 emission and energy requirement. Our findings show that via utilizing CDW-based constituents in mixed form as precursor and waste aggregates, it is possible to develop greener construction materials with acceptable strength and long-term performance.en_US
dc.description.sponsorshipThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 894100. The authors also wish to acknowledge the support of the Scientific and Technical Research Council (TUBITAK) of Turkey provided under project: 117M447.en_US
dc.language.isoenen_US
dc.publisherElsevier
dc.rights© 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.subjectGeopolymeren_US
dc.subjectConstruction and demolition waste (CDW)en_US
dc.subjectCompressive strengthen_US
dc.subjectDrying shrinkageen_US
dc.subjectWater absorptionen_US
dc.subjectEfflorescenceen_US
dc.subjectMaterial sustainability indexen_US
dc.titleA comprehensive study on the compressive strength, durability-related parameters and microstructure of geopolymer mortars based on mixed construction and demolition wasteen_US
dc.status.refereedYesen_US
dc.date.Accepted2023-02-18
dc.date.application2023-02-20
dc.typeArticleen_US
dc.type.versionPublished versionen_US
dc.identifier.doihttps://doi.org/10.1016/j.jclepro.2023.136522
dc.rights.licenseCC-BYen_US
dc.date.updated2023-02-20T15:22:08Z
refterms.dateFOA2023-03-15T16:26:48Z
dc.openaccess.statusopenAccessen_US


Item file(s)

Thumbnail
Name:
Ashour_et_al_Journal_of_Cleane ...
Size:
13.38Mb
Format:
PDF
Thumbnail
Name:
CDWShrinkage-Manuscript-Clean- ...
Size:
1.897Mb
Format:
PDF
Description:
To keep suppressed

This item appears in the following Collection(s)

Show simple item record