Reactions of fly ash with calcium aluminate cement and calcium sulphate

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Title:	Reactions of fly ash with calcium aluminate cement and calcium sulphate
Author:	Fernández Carrasco, Lucía; Vázquez Ramonich, Enric
Other authors:	Universitat Politècnica de Catalunya. Departament de Construccions Arquitectòniques I; Universitat Politècnica de Catalunya. Departament d'Enginyeria de la Construcció; Universitat Politècnica de Catalunya. MATCAR - Materials de Construcció i Carreteres
Abstract:	The hydration processes in the ternary system fly ash/calcium aluminate cement/calcium sulphate (FA/CAC/C$) at 20 °C were investigated; six compositions from the ternary system FA/CAC/C$ were selected for this study. The nature of the reaction products in these pastes were analysed by X-ray diffraction (XRD) and infrared spectroscopy (FTIR). At four days reaction time, the main hydration reaction product in these pastes was ettringite and the samples with major initial CAC presented minor ettringite but calcium aluminates hydrates. The amount of ettringite developed in the systems has no direct relation with the initial components.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Edificació::Materials de construcció::Ciment -Cement -Ciment
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Document type:	Article - Published version Article
Published by:	Elsevier
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