PMID- 32260223 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 1996-1944 (Print) IS - 1996-1944 (Electronic) IS - 1996-1944 (Linking) VI - 13 IP - 7 DP - 2020 Apr 3 TI - Shear Testing of the Interfacial Friction Between an HDPE Geomembrane and Solid Waste. LID - 10.3390/ma13071672 [doi] LID - 1672 AB - High-density polyethylene (HDPE) geomembrane is often used as an anti-seepage material in domestic and industrial solid waste landfills. To study the interfacial shear strength between the HDPE anti-seepage geomembrane and various solid wastes, we performed direct shear tests on the contact interface between nine types of industrial solid waste or soil (desulfurization gypsum, fly ash, red mud, mercury slag, lead-zinc slag, manganese slag, silica fume, clay and sand) and a geomembrane with a smooth or rough surface in Guizhou Province, China. Friction strength parameters like the interfacial friction angle and the apparent cohesion between the HDPE geomembrane and various solid wastes were measured to analyze the shear strength of the interface between a geomembrane with either a smooth or a rough surface and various solid wastes. The interfacial shear stress between the HDPE geomembrane and the industrial solid waste increased with shear displacement and the slope of the stress-displacement curve decreased gradually. When shear displacement increased to a certain range, the shear stress at the interface remained unchanged. The interfacial shear strength between the geomembrane with a rough surface and the solid waste was higher than for the geomembrane with a smooth surface. Consequentially, the interfacial friction angle for the geomembrane with a rough surface was larger. The geomembrane with a rough surface had a better shear resistance and the shear characteristics fully developed when it was in full contact with the solid waste. FAU - Zhou, Luming AU - Zhou L AD - Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China. AD - Jiangsu Research Center for Geotechnical Engineering Technology, Hohai University Nanjing 210098, China. FAU - Zhu, Zhende AU - Zhu Z AD - Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China. AD - Jiangsu Research Center for Geotechnical Engineering Technology, Hohai University Nanjing 210098, China. FAU - Yu, Zhenpeng AU - Yu Z AD - School of Transportation, Southeast University, Nanjing Hydraulic Research Institute, Nanjing 211102, China. FAU - Zhang, Cong AU - Zhang C AUID- ORCID: 0000-0002-7430-8513 AD - Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China. AD - Jiangsu Research Center for Geotechnical Engineering Technology, Hohai University Nanjing 210098, China. LA - eng PT - Journal Article DEP - 20200403 PL - Switzerland TA - Materials (Basel) JT - Materials (Basel, Switzerland) JID - 101555929 PMC - PMC7178408 OTO - NOTNLM OT - HDPE geomembrane OT - direct shear test OT - interfacial friction OT - shear strength OT - solid waste COIS- The authors declare no conflict of interest. EDAT- 2020/04/09 06:00 MHDA- 2020/04/09 06:01 PMCR- 2020/04/03 CRDT- 2020/04/09 06:00 PHST- 2020/02/12 00:00 [received] PHST- 2020/03/22 00:00 [revised] PHST- 2020/03/24 00:00 [accepted] PHST- 2020/04/09 06:00 [entrez] PHST- 2020/04/09 06:00 [pubmed] PHST- 2020/04/09 06:01 [medline] PHST- 2020/04/03 00:00 [pmc-release] AID - ma13071672 [pii] AID - materials-13-01672 [pii] AID - 10.3390/ma13071672 [doi] PST - epublish SO - Materials (Basel). 2020 Apr 3;13(7):1672. doi: 10.3390/ma13071672.