Effect of Side Chain Length Change of Polycarboxylate-Ether-Based High-Range Water-Reducing Admixture on Properties of Cementitious Systems Containing Fly Ash

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dc.authorid0000-0001-5522-427Xen_US
dc.contributor.authorAltun, M.G.
dc.contributor.authorÖzen, Süleyman
dc.contributor.authorMardani-Aghabaglou, A.
dc.date.accessioned2021-03-20T20:26:55Z
dc.date.available2021-03-20T20:26:55Z
dc.date.issued2021
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, İnşaat Mühendisliği Bölümüen_US
dc.description.abstractIn this study, the effect was investigated of side chain length changes of polycarboxylate-ether-based high-range water-reducing (HRWR) admixture on fresh properties, compressive strength, and water adsorption capacity of cementitious systems. For this aim, three HRWR admixtures having same raw materials, anionic/nonionic group ratio, free nonionic group content, and main chain length but different side chain length and molecular weight were synthesized. The effect was investigated of the mentioned admixtures on the properties of mixtures containing 0%, 15%, 30%, and 45% of fly ash. According to the test results, regardless of fly ash utilization ratio, the flowability of the mixtures was positively affected with the increase of the water-reducing admixture side chain length to a certain value. However, utilization of admixtures having the longer side chain length than a certain value adversely affected the flow properties of the mixtures. It is thought that this situation is due to the reduction of the admixture efficiency (steric effect) by increasing the possibility of intertwining of polymers of admixture having higher side chain length. The admixture with 2,400 g/mol of side chain molecular weight (length) showed the best performance in terms of fresh properties. The change of HRWR admixture properties had no significant effect on the strength and water adsorption capacity of the mixtures. Moreover, regardless of HRWR admixture properties, the time-dependent flowability of the mixtures was adversely affected and the water adsorption capacity was decreased with the utilization of fly ash. This effect was more pronounced with increasing replacement ratio of fly ash. © 2021 American Society of Civil Engineers.en_US
dc.description.sponsorship-2016/16, -2018/9 217M408 British Association for Psychopharmacology, BAP: 219M425 Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITAKen_US
dc.description.sponsorshipThe authors appreciate contributions of the Scientific and Technological Research Council of Turkey (TUBITAK) and Bursa Uludag University Science and Technology Centre (BAP) under Grant Nos. 219M425, AYP(MH)-2016/16, DDP(MH)-2018/9, and DDP(MH)-2019/15. In addition, the second author would like to acknowledge the scholarship provided by TUBITAK under Grant No. 217M408 during his Ph.D. study. In addition, the authors would like to thank Polisan Construction Chemicals Company and Bursa-Beton Ready Mixed Concrete Plant authorities for their kind assistance in providing the cement, aggregate, and water-reducing admixture as well as determining the chemical composition and physical and mechanical properties of these products.en_US
dc.identifier.doi10.1061/(ASCE)MT.1943-5533.0003603en_US
dc.identifier.issn0899-1561
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85099749979en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttp://doi.org/10.1061/(ASCE)MT.1943-5533.0003603
dc.identifier.urihttps://hdl.handle.net/20.500.12885/1341
dc.identifier.volume33en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorÖzen, Süleyman
dc.language.isoenen_US
dc.publisherAmerican Society of Civil Engineers (ASCE)en_US
dc.relation.ispartofJournal of Materials in Civil Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAdmixture side chainen_US
dc.subjectCement pasteen_US
dc.subjectFly ashen_US
dc.subjectMortaren_US
dc.subjectPolycarboxylate-ether-based high-range water reducing admixtureen_US
dc.titleEffect of Side Chain Length Change of Polycarboxylate-Ether-Based High-Range Water-Reducing Admixture on Properties of Cementitious Systems Containing Fly Ashen_US
dc.typeArticleen_US

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