Estimation of water retention behaviour of bentonite based on mineralogy and mercury intrusion porosimetry tests

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorAbed, Aymanen_US
dc.contributor.authorSołowski, Wojciech Tomaszen_US
dc.contributor.departmentDepartment of Civil Engineeringen
dc.contributor.groupauthorMineral Based Materials and Mechanicsen
dc.date.accessioned2020-04-28T07:07:05Z
dc.date.available2020-04-28T07:07:05Z
dc.date.embargoinfo:eu-repo/date/embargoEnd/2021-04-14en_US
dc.date.issued2021-06en_US
dc.description.abstractIn this paper a water retention model is developed based on soil mineralogy and microscopic features of material behaviour. The model estimates the water content at a given total suction as the sum of the bentonite minerals' interlayer water and water in the interparticle pores. The paper proposes simple formulae to estimate the interlayer water content and interlayer void ratio based on mineralogical properties. Additionally, the model uses mercury intrusion porosimetry (MIP) measurements to approximate the water content in the larger pores. The validation of the proposed procedure relies on published data for MX-80 and GMZ bentonites and yields promising results. Even though the discussion and the validation are restricted to bentonite here, the procedure is generic in nature and can be modified easily for other geomaterials. The paper also offers insights into the links between a soil's microstructure and its macroscopic behaviour. The contribution provides a new tool for quick indirect estimation of the water retention behaviour of porous materials with known mineral composition and available microstructural data - for example, based on the MIP tests. Such a tool is of great practical interest in design - for example, nuclear waste repositories, where a large material pool may be considered initially.en
dc.description.versionPeer revieweden
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationAbed, A & Sołowski, W T 2021, ' Estimation of water retention behaviour of bentonite based on mineralogy and mercury intrusion porosimetry tests ', Géotechnique, vol. 71, no. 6, 220, pp. 494-508 . https://doi.org/10.1680/jgeot.18.P.220en
dc.identifier.doi10.1680/jgeot.18.P.220en_US
dc.identifier.issn0016-8505
dc.identifier.issn1751-7656
dc.identifier.otherPURE UUID: d3c594fb-cea4-46cf-bfab-d75abea22a20en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/d3c594fb-cea4-46cf-bfab-d75abea22a20en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85105663655&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/42188568/ENG_Abed_and_Solowski_Estimation_of_water_retention_behaviour_of_bentonite_Geotechnique.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/43930
dc.identifier.urnURN:NBN:fi:aalto-202306053560
dc.language.isoenen
dc.publisherICE Publishing Ltd.
dc.relation.ispartofseriesGéotechniqueen
dc.rightsopenAccessen
dc.titleEstimation of water retention behaviour of bentonite based on mineralogy and mercury intrusion porosimetry testsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
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