Applicability of Municipal Solid Waste Incineration Ash on Base Layers of Pavements
Publication: Journal of Materials in Civil Engineering
Volume 26, Issue 6
Abstract
This study presents the characteristics of municipal solid waste (MSW) incineration ash obtained from an electric energy generation plant and evaluates the MSW ash applicability in base road pavement layers through the mixture of ash with a nonlateritic regional clay soil. Chemical, physical, and mechanical tests and the mechanistic-empirical design for a typical pavement structure were carried out on the pure soil and also in the soil mixture with the addition of different ash content (20 and 40%). Fly ash reduced the expansion of the material, showing an increase in the California bearing ratio (CBR) and resilient modulus value. The results are satisfactory, depending on the content and type of ash used, highlighting the positive work of MSW fly ash for its use in base road pavement layers.
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Acknowledgments
The authors want to express their thanks to CNPq for financial support (Project MCT/CNPq 14/2009, Process 480748/2009-8) and to Usina Verde for providing the ashes for the study.
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Published In
Journal of Materials in Civil Engineering
Volume 26 • Issue 6 • June 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Jul 5, 2012
Accepted: Jul 18, 2013
Published online: Jul 20, 2013
Published in print: Jun 1, 2014
Discussion open until: Aug 14, 2014
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