Sustainable Utilization Of Mswi Bottom Ash As Road Construction Materials, Part Ii: Chemical And Environmental Characterization

Abstract

Incineration of municipal solid waste (MSW) is a common technology that converts solid waste into energy. In European and Asian countries, municipal solid waste incineration (MSWI) ash has been beneficially utilized by separating the bottom ash from fly ash and using them as road construction materials. Generally, MSWI bottom ash, classified as nonhazardous materials, is used to replace either cement or fine aggregate in asphalt and concrete mixtures. In this study, chemical and microstructural analyses of MSWI bottom ash ('as received' samples) produced from a Refuse Derived Fuel (RDF) plant in Florida were conducted. The characterization method included energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) methods. Subsequently, leaching behaviors of bottom ash-mixed asphalt and concrete mixtures (for milled asphalt and crushed concrete applications) were investigated. The Synthetic Precipitation Leaching Procedure (SPLP) testing method was used for the leaching investigation.

Publication Date

1-1-2015

Publication Title

Airfield and Highway Pavements 2015: Innovative and Cost-Effective Pavements for a Sustainable Future - Proceedings of the 2015 International Airfield and Highway Pavements Conference

Number of Pages

593-604

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1061/9780784479216.053

Socpus ID

84936797260 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84936797260

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