The present study examines a solidification/stabilization treatment of MSW fly ash utilizating a lime-pozzolan binder. The verification of a suitable solidification of the fly ash-binder mixtures was made by determining the compressive strengths of the hardened pastes after various curing periods. X-ray diffractometry and DTA/TG thermoanalytical investigations were carried out which demonstrate the effect of fly ash on the hydration reactions of the lime-pozzolan binder. The stabilization of the fly ash in lime-pozzolan pastes was evaluated through the application of leaching tests. A low concentration of heavy metals in the leachate makes it possible to establish the suitability of the lime-pozzolan binder in fixing these contaminants.
Study of Solidification and Stabilization of MSW Fly Ash by Lime-Pozzolan Binder / Ubbriaco, Pietro (SERIES OF MONOGRAPHS ON MATERIALS SCIENCE, ENGINEERING AND TECHNOLOGY). - In: Proceedings of the 1st National congress: Valorisation and recycling of industrial wastes : L'Aquila, 7-10 luglio 1997 / [a cura di] Mario Pelino; Gian Carlo Pellacani. - STAMPA. - Modena : Mucchi, 1998. - ISBN 88-7000-304-3. - pp. 147-153
Study of Solidification and Stabilization of MSW Fly Ash by Lime-Pozzolan Binder
Ubbriaco, Pietro
1998-01-01
Abstract
The present study examines a solidification/stabilization treatment of MSW fly ash utilizating a lime-pozzolan binder. The verification of a suitable solidification of the fly ash-binder mixtures was made by determining the compressive strengths of the hardened pastes after various curing periods. X-ray diffractometry and DTA/TG thermoanalytical investigations were carried out which demonstrate the effect of fly ash on the hydration reactions of the lime-pozzolan binder. The stabilization of the fly ash in lime-pozzolan pastes was evaluated through the application of leaching tests. A low concentration of heavy metals in the leachate makes it possible to establish the suitability of the lime-pozzolan binder in fixing these contaminants.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
