Novel one-part fly ash alkali-activated cements for ambient applications

dc.contributor.authorTarique, Oscar
dc.contributor.authorKovtun, Maxim
dc.date.accessioned2023-03-28T07:54:31Z
dc.date.available2023-03-28T07:54:31Z
dc.date.issued2022-10
dc.description.abstractAlkali-activated cements utilising fly ash can be a low-carbon alternative to Portland cement. However, fly ash alkaliactivated cements require curing at elevated temperature and have cost plus environmental implications owing to the use of strong alkali solutions. Unclassified fly ash, silica fume, calcium hydroxide and sodium carbonate were used to develop novel one-part fly ash alkali-activated cements. When cured at ambient conditions, the cements gained compressive strength up to 11.0 and 44.2 MPa at 3 and 28 days, respectively. Microstructural investigations revealed that cation exchange reaction between the activators was the key element in the development of the microstructure and strength of the cements. The novel fly ash alkali-activated cements have at least 50% lower impact on global warming than highly blended Portland cements.en_US
dc.description.departmentCivil Engineeringen_US
dc.description.librarianam2023en_US
dc.description.urihttps://www.icevirtuallibrary.com/toc/jadcr/currenten_US
dc.identifier.citationTarique, O. & Kovtun, M. (2022) Novel one-part fly ash alkali-activated cements for ambient applications. Advances in Cement Research 34(10): 458–471, https://DOI.org/10.1680/jadcr.21.00144.en_US
dc.identifier.issn0951-7197 (print)
dc.identifier.issn1751-7605 (online)
dc.identifier.other10.1680/jadcr.21.00144
dc.identifier.urihttp://hdl.handle.net/2263/90237
dc.language.isoenen_US
dc.publisherICE Publishingen_US
dc.rights© ICE Publishing.en_US
dc.subjectAlkali-activated cementsen_US
dc.subjectCuringen_US
dc.subjectFly ashen_US
dc.titleNovel one-part fly ash alkali-activated cements for ambient applicationsen_US
dc.typeArticleen_US

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