Use of alkali activated high-calcium fly ash binder for kaolin clay soil stabilisation : physicochemical evolution
Coudert, Elodie and Paris, Michael and Deneele, Dimitri and Russo, Giacomo and Tarantino, Alessandro (2019) Use of alkali activated high-calcium fly ash binder for kaolin clay soil stabilisation : physicochemical evolution. Construction and Building Materials, 201. 539–552. ISSN 0950-0618 (https://doi.org/10.1016/j.conbuildmat.2018.12.188)
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Abstract
This study addresses the use of alkali activated high-calcium fly ash-based binder to improve engineering characteristics of soft clay-rich soils as an alternative to common stabilisers. The physico-chemical reaction sequence has been investigated by considering the binder alone and the binder mixed with kaolin. An insight into the reactivity evidenced that calcium-containing phases derived from high-calcium fly ash represent the reactive phases and, hence, pozzolanic activity is the dominant process. New compounds are formed, thenardite Na2SO4 and an amorphous silicate consisting of chains combined with calcium probably incorporating three-dimensional four-fold aluminium environments.
ORCID iDs
Coudert, Elodie, Paris, Michael, Deneele, Dimitri, Russo, Giacomo and Tarantino, Alessandro ORCID: https://orcid.org/0000-0001-6690-748X;-
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Item type: Article ID code: 67238 Dates: DateEvent20 March 2019Published7 January 2019Published Online27 December 2018AcceptedSubjects: Technology > Engineering (General). Civil engineering (General) Department: Faculty of Engineering > Civil and Environmental Engineering Depositing user: Pure Administrator Date deposited: 11 Mar 2019 12:25 Last modified: 11 Oct 2024 00:27 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/67238