Water Content - Density Criteria for Determining Geomembrane - Fly Ash Interface Shear Strength
AbstractThe aim of the present paper was to determine shear strength at the interface between fly ash, as a material underlying artificial sealing layer of storage yards, and HDPE geomembranes. The fly ash was compacted at moisture contents ranging over optimum water contents ± 5% using the standard Proctor test. The shear strength and interaction tests were conducted in classic direct shear apparatus with a cylindrical shear box. For interface strength tests the bottom box frame was equipped with a polycarbonate platen, which enabled geomembrane fixing. The shear strength of the interface contact of fly ash–smooth HDPE geomembrane did not greatly depend on moisture at compaction; however, it was important for textured geomembrane. The lowest interface strength was obtained at the highest moisture w= wopt + 5%, and the greatest values at moistures w ≥ wopt, for both geomembranes.
|Journal series||MATEC Web of Conferences, ISSN , e-ISSN 2261-236X, (0 pkt)|
|Publication size in sheets||0.5|
|Conference||64 Konferencja Naukowa Komitetu Inżynierii Lądowej i Wodnej PAN oraz Komitetu Nauki (PZITB), 16-09-2018 - 20-09-2018, Krynica Zdrój, Polska|
|License||Journal (articles only); published final; ; with publication|
|Score|| = 15.0, 17-07-2019, manual|
= 5.0, 12-02-2020, ArticleFromConference
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