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Conference Paper: Water-entry pressure in water repellent soils: a review

TitleWater-entry pressure in water repellent soils: a review
Authors
Issue Date2020
PublisherEDP Sciences. The Journal's web site is located at http://www.e3s-conferences.org/
Citation
4th European Conference on Unsaturated Soils (E-UNSAT 2020), Virtual Conference, 19-21st October 2020. Proceedings in E3S Web of Conferences, 2020, v. 195, article no. 02030 How to Cite?
AbstractWater repellent soils can be naturally promoted (e.g. after wildfires) or synthetically induced by mixing with hydrophobic compounds (e.g. polydimethylsiloxane). The study of soil water repellency has lasted for over one century which implied the significant effect of soil water repellency on water infiltration, evaporation, soil strength, and soil stability. Water repellent soils can also be exploited by geotechnical engineers to offer novel and economical solutions for ground infrastructure. This paper synthesizes different methods for assessing soil water repellency based on varied indexes (e.g. contact angle, time for a drop to infiltrate) and with a focus on water entry pressure. Measurements of these parameters in synthetic water- repellent sands were taken, some results of which are summarized with discussion of key factors affecting water repellency. A comparison of these methods shows that water entry pressure can be more representative for assessing the water repellency of bulk samples.
Persistent Identifierhttp://hdl.handle.net/10722/293921
ISSN

 

DC FieldValueLanguage
dc.contributor.authorXing, X-
dc.contributor.authorNunes Lourenco, SD-
dc.date.accessioned2020-11-23T08:23:46Z-
dc.date.available2020-11-23T08:23:46Z-
dc.date.issued2020-
dc.identifier.citation4th European Conference on Unsaturated Soils (E-UNSAT 2020), Virtual Conference, 19-21st October 2020. Proceedings in E3S Web of Conferences, 2020, v. 195, article no. 02030-
dc.identifier.issn2267-1242-
dc.identifier.urihttp://hdl.handle.net/10722/293921-
dc.description.abstractWater repellent soils can be naturally promoted (e.g. after wildfires) or synthetically induced by mixing with hydrophobic compounds (e.g. polydimethylsiloxane). The study of soil water repellency has lasted for over one century which implied the significant effect of soil water repellency on water infiltration, evaporation, soil strength, and soil stability. Water repellent soils can also be exploited by geotechnical engineers to offer novel and economical solutions for ground infrastructure. This paper synthesizes different methods for assessing soil water repellency based on varied indexes (e.g. contact angle, time for a drop to infiltrate) and with a focus on water entry pressure. Measurements of these parameters in synthetic water- repellent sands were taken, some results of which are summarized with discussion of key factors affecting water repellency. A comparison of these methods shows that water entry pressure can be more representative for assessing the water repellency of bulk samples.-
dc.languageeng-
dc.publisherEDP Sciences. The Journal's web site is located at http://www.e3s-conferences.org/-
dc.relation.ispartofE3S Web of Conferences-
dc.relation.ispartof4th European Conference on Unsaturated Soils (E-UNSAT 2020)-
dc.titleWater-entry pressure in water repellent soils: a review-
dc.typeConference_Paper-
dc.identifier.emailNunes Lourenco, SD: lourenco@hku.hk-
dc.identifier.authorityNunes Lourenco, SD=rp01872-
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1051/e3sconf/202019502030-
dc.identifier.hkuros319785-
dc.identifier.volume195-
dc.identifier.spagearticle no. 02030-
dc.identifier.epagearticle no. 02030-
dc.publisher.placeFrance-

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