6533b826fe1ef96bd1284905
RESEARCH PRODUCT
Characterization by solid-state NMR and selective dissolution techniques of anhydrous and hydrated CEM V cement pastes.
H. PeycelonThibault CharpentierC.n. ChaoAndré NonatFrancine Brunetsubject
CementBlended cement (D)Materials science0211 other engineering and technologiesSlagMineralogy02 engineering and technologyBuilding and ConstructionNuclear magnetic resonance spectroscopy021001 nanoscience & nanotechnologyMicrostructureClinker (cement)NMR spectroscopyChemical engineeringGround granulated blast-furnace slagvisual_artFly ash021105 building & constructionvisual_art.visual_art_mediumHydration (A)General Materials ScienceAmorphous material (B)0210 nano-technologyDissolutiondescription
International audience; 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-02-01 |