Structural Parts based on Municipal-Solid-Waste Incineration Ashes

Abstract

We investigated a novel processing technique of municipal solid waste incineration (MSWI) ashes. By using two thermodynamic driving forces - a strong alkaline activator and a compaction pressure, the otherwise relatively nonreactive MSWI ashes could form strong solids, with relatively high flexural and compressive strengths. The produced material was dense, with a low defect density. The effects of the compaction pressure range, the alkaline activator amount, and the MSWI fly ash to bottom ash ratio were examined. We also used 5 wt% class-C fly ash, 5 wt% class-F fly ash, and/or 1 wt% epoxy as additives. This study may open a door to advanced MSWI ash upcycling approaches, useful to environmental preservation and sustainability.

Department(s)

Civil, Architectural and Environmental Engineering

Comments

This work was supported by the Advanced Research Projects Agency - Energy, Grant DE-AR0001144.

Keywords and Phrases

Compaction; Incineration Ash; Municipal Solid Waste; Structural Materials; Upcycling

International Standard Serial Number (ISSN)

1879-2456; 0956-053X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2022 Elsevier, All rights reserved.

Publication Date

01 Aug 2022

PubMed ID

35843056

Link to Full Text

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