Journal article
Geotechnical Engineering Properties of Incinerator Ash Mixes
Journal of the Air & Waste Management Association (1995), Vol.54(8), pp.985-991
08/01/2004
Handle:
https://hdl.handle.net/2376/114199
PMID: 15373366
Abstract
The incineration of solid waste produces large quantities of bottom and fly ash. Landfilling has been the primary mode of disposal of these waste materials. Shortage in landfill space and the high cost of treatment have, however, prompted the search for alternative uses of these waste materials. This study presents an experimental program that was conducted to determine the engineering properties of incinerator ash mixes for use as construction materials. Incinerator ash mixes were tested as received and around optimum compacted conditions. Compaction curves, shear strength, and permeability values of fly ash, bottom ash, and their various blends were investigated. Bottom ash tends to achieve maximum dry density at much lower water content than does fly ash. The mixes displayed a change in their cohesion and friction angle values when one of the two mix components was altered or as a result of the addition of water. The permeability of bottom ash is quite comparable to that of sand. The permeability of fly ash lies in the range of those values obtained for silts and clays. A 100% bottom ash compacted at the optimum water content has a lower density value and yields a higher friction angle and cohesion values than most construction fills. This would encourage the use of bottom ash as a fill or embankment material because free drainage of water will prevent the buildup of pore water pressures.
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Details
- Title
- Geotechnical Engineering Properties of Incinerator Ash Mixes
- Creators
- B Muhunthan - Department of Civil and Environmental Engineering , Washington State UniversityR Taha - Department of Civil and Architectural Engineering , College of Engineering, Sultan Qaboos UniversityJ Said - Engineer
- Publication Details
- Journal of the Air & Waste Management Association (1995), Vol.54(8), pp.985-991
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Taylor & Francis Group
- Identifiers
- 99900547892101842
- Language
- English
- Resource Type
- Journal article