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Characterisation of the physico-mechanical parameters of MSW

Abstract : Following the basics of soil mechanics, the physico-mechanical behaviour of municipal solid waste (MSW) can be defined through constitutive relationships which are expressed with respect to three physical parameters: the dry density, the porosity and the gravimetric liquid content. In order to take into account the complexity of MSW (grain size distribution and heterogeneity larger than for conventional soils), a special oedometer was designed to carry out laboratory experiments. This apparatus allowed a coupled measurement of physical parameters for MSW settlement under stress. The studied material was a typical sample of fresh MSW from a French landfill. The relevant physical parameters were measured using a gas pycnometer. Moreover, the compressibility of MSW was studied with respect to the initial gravimetric liquid content. Proposed methods to assess the set of three physical parameters allow a relevant understanding of the physico-mechanical behaviour of MSW under compression, specifically, the evolution of the limit liquid content. The present method can be extended to any type of MSW.
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https://hal-insu.archives-ouvertes.fr/insu-00563595
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Submitted on : Sunday, February 6, 2011 - 11:12:53 PM
Last modification on : Friday, September 25, 2020 - 11:02:44 AM

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Guillaume Stoltz, J.P. Gourc, Laurent Oxarango. Characterisation of the physico-mechanical parameters of MSW. Waste Management, Elsevier, 2010, 30, pp.1439-1449. ⟨10.1016/j.wasman.2010.03.016⟩. ⟨insu-00563595⟩

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