| A laboratory study on the MSW mechanical behavior in triaxial apparatus. | |
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MedLine Citation:
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PMID: 21478006 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Shear strength characterization of MSW materials is a mandatory task when performing analyses related to landfill design and landfill geometry improvements. Despite the considerable amount of research focusing on MSW mechanical behavior there remain certain aspects which are not completely understood and deserve attention in particular the case of the undrained behavior of MSW. This paper presents the results of a comprehensive laboratory testing program using a large-scale triaxial apparatus at the Federal University of Bahia, Salvador, Brazil. The effect of factors such as confining pressure, unit weight, fiber content, rate of loading and over-consolidation on the MSW mechanical response were investigated. Tested samples presented typical MSW shear/strain curves (concave upward) in all the tests, despite the pore water pressure reaching levels almost equal to the confining pressure. The obtained results show that increasing confining stress, unit weight, loading rate, fiber content and over-consolidation lead to an increase in the MSW shear strength. The importance of the fibrous components in the waste behavior is highlighted and graphs showing the variation of the MSW shear strength with fiber content in different drainage conditions are shown. The authors believe these results could be of interest to many companies, especially considering the new trend of plastic material recycling (prior landfilling) for energy recovery purposes. |
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Authors:
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Mehran Karimpour-Fard; Sandro Lemos Machado; Nader Shariatmadari; Ali Noorzad |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-7 |
Journal Detail:
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Title: Waste management (New York, N.Y.) Volume: - ISSN: 1879-2456 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-4-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9884362 Medline TA: Waste Manag Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Ltd. All rights reserved. |
Affiliation:
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Dept. of Civil Engineering, Iran University of Science and Technology, Narmak, Teharn 16846-13114, Iran. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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