Municipal solid waste incineration fly ash stabilization and immovilization into sulfoaluminate cement mortars: physical/mechanical behaviour

López Zaldívar, Óscar and Lozano Díez, Rafael Vicente and Verdú Vázquez, María Amparo (2015). Municipal solid waste incineration fly ash stabilization and immovilization into sulfoaluminate cement mortars: physical/mechanical behaviour. In: "III International Congress on Construction and Building Research (COINVEDI)", 14-16 Dic 2015, Madrid, España. ISBN 978-84-933567-6-7. pp. 111-113.

Description

Title: Municipal solid waste incineration fly ash stabilization and immovilization into sulfoaluminate cement mortars: physical/mechanical behaviour
Author/s:
  • López Zaldívar, Óscar
  • Lozano Díez, Rafael Vicente
  • Verdú Vázquez, María Amparo
Item Type: Presentation at Congress or Conference (Other)
Event Title: III International Congress on Construction and Building Research (COINVEDI)
Event Dates: 14-16 Dic 2015
Event Location: Madrid, España
Title of Book: III International Congress on Construction and Building Research (COINVEDI). Book of extended abstracts
Date: 2015
ISBN: 978-84-933567-6-7
Subjects:
Freetext Keywords: Mortars, Fly ash, Solid urban wastes, Sulfoaluminate cement, Inmovilization
Faculty: E.T.S. de Edificación (UPM)
Department: Tecnología de la Edificación
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The first objective of the research aims to transform the waste formed mainly by calcium hydroxide and calcium hydroxychloride into another limy type material (calcium carbonate material). This is achieved by transforming the high soluble heavy metals chlorides into low soluble carbonates. The second objective focuses on the stabilization and use of this MSWI fly ash as part of the aggregates used in the production of cement mortars. Previous studies emphasize that the mechanical strength of mortars elaborated with Portland cements and the incorporation of fly ash as a partial substitute for the aggregate were significantly affected when compared to the reference mortars. On the contrary,the use of sulfoaluminate cements (CSA) has been demonstrated to be a highly effective way to safely encapsulate hazardous materials without affecting mechanical strength. In addition, CSA was also chosen due to the perception that sulphur content would make the precipitation of heavy metals in the form of sulphides easier.

More information

Item ID: 41821
DC Identifier: http://oa.upm.es/41821/
OAI Identifier: oai:oa.upm.es:41821
Official URL: https://www.edificacion.upm.es/congresos/III_coinvedi/
Deposited by: Memoria Investigacion
Deposited on: 20 Apr 2017 12:36
Last Modified: 20 Apr 2017 12:36
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