NAVRACHANA UNIVERSITY

Matric suction, swelling and collapsible characteristics of unsaturated expansive soils

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dc.contributor.author Pandya, Saloni
dc.contributor.author Sachan, Ajanta
dc.date.accessioned 2021-09-30T10:20:39Z
dc.date.available 2021-09-30T10:20:39Z
dc.date.issued 2018
dc.identifier.uri http://27.109.7.66:8080/xmlui/handle/123456789/692
dc.description Journal of Geotechnical and Transportation Engineering - 2018 vol. 4 (1), P. 1-9 en_US
dc.description.abstract Unsaturated expansive soils are recognized as one of the most problematic soils owing to its swelling-shrinkage characteristics. The presence of such soils in highway/railway embankments, slopes and earthen dam sites manifests various critical issues during and after the construction of structures. The current research aims on the evaluation of the suction, swelling and collapsible characteristics of four expansive soils possessing different expansiveness and mineralogical composition. A series of constant volume swell pressure, double-oedometer and incontact filter paper tests were performed on four different expansive soils to acquire swelling pressure, collapse potential and matric suction at different degree of saturation. Swelling pressure, collapse potential and matric suction of all expansive soils degraded substantially with increment in the degree of saturation. The results revealed significant impact of magnitude of matric suction on volumetric deformation (swell and collapse) behavior of expansive soils. Swelling and collapse potential were observed to be higher for the expansive soils with larger matric suction. Higher matric suction governed the water intake within interlayer spacing of the Montmorillonite mineral present in expansive soil, which contributed to higher crystalline swelling response. Larger collapse potential indicated development of larger localized deformations within the soil mass owing to higher matric suction en_US
dc.language.iso en en_US
dc.publisher Journal of Geotechnical and Transportation Engineering en_US
dc.subject Expansive en_US
dc.subject Unsaturated en_US
dc.subject Matric suction en_US
dc.subject Swell Pressure en_US
dc.subject Collapse Potential en_US
dc.title Matric suction, swelling and collapsible characteristics of unsaturated expansive soils en_US
dc.type Article en_US


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