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Coudert, E., Paris, M., Deneele, D., Russo, G. & Tarantino, A. (2019) Use of alkali activated high-calcium fly ash binder for kaolin clay soil stabilisation: Physicochemical evolution. Construction and Building Materials, 201 539–552.
Added by: Richard Baschera (2019-03-26 10:55:33) Last edited by: Richard Baschera (2019-03-26 10:57:20) |
| Type de référence: Article DOI: 10.1016/j.conbuildmat.2018.12.188 Clé BibTeX: Coudert2019 Voir tous les détails bibliographiques  |
Catégories: ID2M, IMN, INTERNATIONAL Créateurs: Coudert, Deneele, Paris, Russo, Tarantino Collection: Construction and Building Materials |
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| Résumé |
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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. (C) 2018 Elsevier Ltd. All rights reserved.
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