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Characterization by solid-state NMR and selective dissolution techniques of anhydrous and hydrated CEM V cement pastes / F. Brunet in Cement and concrete research, Vol. 40 N° 2 (02 ex.) (Fevrier 2010) 

Public ISBD [article]  in Cement and concrete research > Vol. 40 N° 2 (02 ex.) (Fevrier 2010) . - pp. 208-219 Titre : Characterization by solid-state NMR and selective dissolution techniques of anhydrous and hydrated CEM V cement pastes Type de document : texte imprimé Auteurs : F. Brunet, Auteur ; T. Charpentier, Auteur ; C. N. Chao, Auteur Année de publication : 2010 Article en page(s) : pp. 208-219 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Hydration  Amorphous  material  Blended  cement  NMR  spectroscopy Index. décimale : 691 Matériaux de construction. Pièces et parties composantes Résumé : The long term behaviour of cement based materials is strongly dependent on the paste microstructure and also on the internal chemistry. A CEM V blended cement containing pulverised fly ash (PFA) and blastfurnace slag (BFS) has been studied in order to understand hydration processes which influence the paste microstructure. Solid-state NMR spectroscopy with complementary X-ray diffraction analysis and selective dissolution techniques have been used for the characterization of the various phases (C3S, C2S, C3A and C4AF) of the clinker and additives and then for estimation of the degree of hydration of these same phases. Their quantification after simulation of experimental 29Si and 27Al MAS NMR spectra has allowed us to follow the hydration of recent (28 days) and old (10 years) samples that constitutes a basis of experimental data for the prediction of hydration model. DEWEY : 620.13 ISSN : 0008-8846 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TWG-4XJN4W8-3&_user=6 [...] [article] Characterization by solid-state NMR and selective dissolution techniques of anhydrous and hydrated CEM V cement pastes [texte imprimé] / F. Brunet, Auteur ; T. Charpentier, Auteur ; C. N. Chao, Auteur . - 2010 . - pp. 208-219. Génie Civil Langues : Anglais (eng) in Cement and concrete research > Vol. 40 N° 2 (02 ex.) (Fevrier 2010) . - pp. 208-219 Mots-clés : Hydration  Amorphous  material  Blended  cement  NMR  spectroscopy Index. décimale : 691 Matériaux de construction. Pièces et parties composantes Résumé : The long term behaviour of cement based materials is strongly dependent on the paste microstructure and also on the internal chemistry. A CEM V blended cement containing pulverised fly ash (PFA) and blastfurnace slag (BFS) has been studied in order to understand hydration processes which influence the paste microstructure. Solid-state NMR spectroscopy with complementary X-ray diffraction analysis and selective dissolution techniques have been used for the characterization of the various phases (C3S, C2S, C3A and C4AF) of the clinker and additives and then for estimation of the degree of hydration of these same phases. Their quantification after simulation of experimental 29Si and 27Al MAS NMR spectra has allowed us to follow the hydration of recent (28 days) and old (10 years) samples that constitutes a basis of experimental data for the prediction of hydration model. DEWEY : 620.13 ISSN : 0008-8846 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TWG-4XJN4W8-3&_user=6 [...]