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Cement and Concrete Research Volume 39, Issue 6, June 2009, Pages 501–509 Cover image Study of mineralogy and leaching behavior of stabilized/solidified sludge using differential acid neutralization analysis: Part II: Use of numerical simulation as an aid tool for cementitious hydrates identification / O. Peyronnard in Cement and concrete research, Vol. 39 N° 6 (Juin 2009) 

Public ISBD [article]  in Cement and concrete research > Vol. 39 N° 6 (Juin 2009) . - pp. Titre : Cement and Concrete Research Volume 39, Issue 6, June 2009, Pages 501–509 Cover image Study of mineralogy and leaching behavior of stabilized/solidified sludge using differential acid neutralization analysis: Part II: Use of numerical simulation as an aid tool for cementitious hydrates identification Type de document : texte imprimé Auteurs : O. Peyronnard, Auteur ; D. Blanc, Auteur ; M. Benzaazoua, Auteur Année de publication : 2009 Article en page(s) : pp. Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Waste  management  ;  Modeling  ;  Mineral  assemblage;  Fly  ash  ;  Portland  cement Résumé : In this work, we propose a methodology coupling differential acid neutralization analysis, chemical analysis of selected leachates and numerical simulation to identify the minerals controlling the leaching behavior of stabilized hydroxide sludge. This second part deals with the use of numerical simulation as an aid tool for the identification of the minerals. The framework for minerals identification is based on the study of minerals stability in function of the geochemical context using numerical simulation. A mineral assemblage permitting the simulation of a pH dependence leaching test (acid neutralization and release of elements) has been identified for the four studied cement pastes. Therefore, the proposed methodology is a pertinent tool for the modeling of the leaching behavior of inorganic wastes. ISSN : 0008-8846 En ligne : http://www.sciencedirect.com/science/article/pii/S000888460900074X [article] Cement and Concrete Research Volume 39, Issue 6, June 2009, Pages 501–509 Cover image Study of mineralogy and leaching behavior of stabilized/solidified sludge using differential acid neutralization analysis: Part II: Use of numerical simulation as an aid tool for cementitious hydrates identification [texte imprimé] / O. Peyronnard, Auteur ; D. Blanc, Auteur ; M. Benzaazoua, Auteur . - 2009 . - pp. Génie Civil Langues : Anglais (eng) in Cement and concrete research > Vol. 39 N° 6 (Juin 2009) . - pp. Mots-clés : Waste  management  ;  Modeling  ;  Mineral  assemblage;  Fly  ash  ;  Portland  cement Résumé : In this work, we propose a methodology coupling differential acid neutralization analysis, chemical analysis of selected leachates and numerical simulation to identify the minerals controlling the leaching behavior of stabilized hydroxide sludge. This second part deals with the use of numerical simulation as an aid tool for the identification of the minerals. The framework for minerals identification is based on the study of minerals stability in function of the geochemical context using numerical simulation. A mineral assemblage permitting the simulation of a pH dependence leaching test (acid neutralization and release of elements) has been identified for the four studied cement pastes. Therefore, the proposed methodology is a pertinent tool for the modeling of the leaching behavior of inorganic wastes. ISSN : 0008-8846 En ligne : http://www.sciencedirect.com/science/article/pii/S000888460900074X