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Journal Articles Journal of Geotechnical and Geoenvironmental Engineering Year : 2011

Moisture Retention Properties of Municipal Solid Waste in Relation to Compression

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Abstract

Original laboratory setups are used to study the moisture retention properties of municipal solid waste taking into account the porous medium's structural evolution due to compression. A controlled suction oedometer allowed the moisture retention curves (MRCs) of compacted samples to be determined for both wetting and drainage with a matric suction range of 0 to 10 kPa. Another setup utilizing an extraction plate was used to determine a drainage MRC for a non‐compacted sample with matric suction varying from 0 to 450 kPa. The experimental results demonstrated the complexity of MSW porous medium compared to soil. The MRC of lightly and uncompacted samples did not exhibit a measurable air‐entry suction. Moreover, significant hysteresis between the wetting and drainage MRCs was observed. The experimental MRCs were interpreted with two different models, and a pore size distribution evolution with compression was proposed. Finally, the concept of field capacity in relation to the moisture retention properties is discussed.
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Dates and versions

insu-00649318 , version 1 (07-12-2011)

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Guillaume Stoltz, A.J. Tinet, M.J. Staub, L. Oxarango, J.P. Gourc. Moisture Retention Properties of Municipal Solid Waste in Relation to Compression. Journal of Geotechnical and Geoenvironmental Engineering, 2011, ⟨10.1061/(ASCE)GT.1943-5606.0000616⟩. ⟨insu-00649318⟩
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