Recycling Of Municipal Solid Waste Incineration (Mswi) Ash As Aggregate Replacement In Concrete

Abstract

In the U.S., about 250 million tons of municipal solid waste (MSW) is being generated annually, but only 34% of it is recycled or composted. The rest is combusted and / or disposed of in landfills. Combusting MSW is one of promising options to convert waste into energy and also it significantly reduces the volume of waste by nearly 90%. As byproduct, municipal solid waste incineration (MSWI) bottom and fly ashes are produced. Unlike European and Asian countries, the beneficial use of MSWI ash has not received an attention in the U.S. The use of MSWI ashes in civil construction sector can be one of promising options. The objective of this paper is to evaluate the feasibility of MSWI bottom ash (BA) as partial replacement of fine aggregate in concrete. Laboratory experimental studies were conducted to evaluate physical, mechanical, and durability performance of concrete containing the BA. The mechanical performance was investigated by measuring compressive strength at 28 days of age and absorption capacity. Analysis on measured data has shown that the addition of MSWI ash into concrete does not increase strength and durability properties but has comparable results with control samples.

Publication Date

1-1-2015

Publication Title

Geotechnical Special Publication

Volume

GSP 256

Number of Pages

2797-2806

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1061/9780784479087.261

Socpus ID

84925062126 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84925062126

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