The benefits of incorporating glycerol carbonate into an innovative pozzolanic matrix
| Autor: | Camille Magniont, Claire Oms-Multon, Gilles Escadeillas, Pascale De Caro |
|---|---|
| Přispěvatelé: | Laboratoire Matériaux et Durabilité des constructions (LMDC), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Laboratoire de Chimie Agro-Industrielle (LCA), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure de Chimie de Toulouse, Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Chimie Agro-Industrielle (CAI), Institut National de la Recherche Agronomique (INRA)-Ecole nationale supérieure des ingénieurs en arts chimiques et technologiques-Institut National Polytechnique (Toulouse) (Toulouse INP), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole nationale supérieure des ingénieurs en arts chimiques et technologiques-Institut National de la Recherche Agronomique (INRA), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT), Institut National de la Recherche Agronomique (INRA)-Ecole nationale supérieure des ingénieurs en arts chimiques et technologiques (ENSIACET), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Materials science
Aluminate 02 engineering and technology Admixture engineering.material 010402 general chemistry 01 natural sciences Glycerol carbonate chemistry.chemical_compound [SPI]Engineering Sciences [physics] General Materials Science Composite material Metakaolin Hydraulic lime Building and Construction Pozzolan 021001 nanoscience & nanotechnology 0104 chemical sciences Compressive strength Calcium carbonate chemistry Chemical engineering engineering Carbonate Hydroxide 0210 nano-technology |
| Zdroj: | Cement and Concrete Research Cement and Concrete Research, Elsevier, 2010, 40 (7), pp.1072-1080. ⟨10.1016/j.cemconres.2010.03.009⟩ Cement and Concrete Research, 2010, 40 (7), pp.1072-1080. ⟨10.1016/j.cemconres.2010.03.009⟩ |
| ISSN: | 0008-8846 |
| Popis: | International audience; A green admixture, glycerol carbonate (GC), has been incorporated into an alternative binder composed of hydraulic lime and metakaolin. The new properties achieved are rapid hardening, an improvement of compressive strength and a reduction in shrinkage. A study of the rheological behaviour and monitoring of conductivity, pH and organic compounds concentrations in diluted solutions led to the conclusion of an early precipitation of calcium carbonate due to GC decomposition. This phenomenon is believed to be responsible for the early stiffening of the paste. XRD and TG analyses showed changes in the mineralogical hydrated phases formed in the presence of GC: calcium aluminium oxide hemi-carbonate hydroxide hydrate is the only aluminate phase existing in this mineralogical system and more C–S–H are formed. These differences could explain the enhancement in the paste mechanical performance. The study concludes that this innovative pozzolanic matrix has considerable potential as a binder in building ecocomposites. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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