Long-term clogging behavior of non-woven geotextiles with silty and gap-graded sands

Shobha K. Bhatia, Saad Qureshi, Robert M. Kogler

Research output: Contribution to journalConference Articlepeer-review

8 Scopus citations


Non-woven geotextiles are generally used for the protection of synthetic liners in sanitary landfills. In this application the geotextiles perform as a filter and drain for the leachate collection system. Since geotextiles play a major role in landfill design, they should be properly selected to obviate any clogging problems. Filtration criterion for the non-woven geotextiles are still evolving. The existing filter criteria are not applicable for silty and gap-graded soils. In this paper, the results are presented for six different non-woven geotextiles which are tested with eighteen different gap-graded soils to evaluate long-term filtration behaviors. Microstructure analysis results are provided for a better understanding of the clogging mechanism of non-woven geotextiles.

Original languageEnglish (US)
Pages (from-to)285-298
Number of pages14
JournalASTM Special Technical Publication
Issue number1081
StatePublished - 1990
EventGeosynthetic Testing for Waste Containment Applications - Las Vegas, NV, USA
Duration: Jan 23 1990Jan 23 1990

ASJC Scopus subject areas

  • General Engineering


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