Influence of silicate solution preparation on geomaterials based on brick clay materials

Autor: Emmanuel Joussein, Sylvie Rossignol, Julie Peyne, J. Doudeau, J. Gautron
Přispěvatelé: Axe 3 : organisation structurale multiéchelle des matériaux (SPCTS-AXE3), Science des Procédés Céramiques et de Traitements de Surface (SPCTS), Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Ecole Nationale Supérieure de Céramique Industrielle (ENSCI)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Ecole Nationale Supérieure de Céramique Industrielle (ENSCI)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)
Rok vydání: 2017
Předmět:
Zdroj: Journal of Non-Crystalline Solids
Journal of Non-Crystalline Solids, Elsevier, 2017, 471, pp.110-119. ⟨10.1016/j.jnoncrysol.2017.05.017⟩
ISSN: 0022-3093
DOI: 10.1016/j.jnoncrysol.2017.05.017
Popis: Brick clay mixtures are raw materials with the potential for use in geomaterials other than tiles or bricks. This study concerns the effect of mixed alkali cation solutions on the polycondensation reactions of geomaterials based on brick clay mixtures. To evidence the feasibility and the understanding of such effects, FTIR and Raman spectroscopy, thermal analyses and compressive tests were investigated to reveal the performance of the alkaline solution and aluminosilicate source. The various solutions used contained different siliceous species (rings, chains) that modified the polycondensation reactions and the Si-O-Ca bond formation. The effect of the polarizability of the alkaline and alkaline earth solutions must be controlled to enhance the final properties. Better mechanical properties were obtained with a low water content.
Databáze: OpenAIRE