...N. Akel; A. Wautier; G. Stoltz; F. Nicot; N. Touze This paper presents a multiscale analysis of the mechanical behavior of polyvinyl chloride ( PVC ) geomembranes under uniaxial tensile loading using a 3D Discrete Element Method ( DEM )-based model that incorporates microstructural characteristics...

...M. Ghasemi; V. Di Battista The contaminant transport of chloride through a single composite liner facility comprised of a geomembrane ( GMB ) with holed wrinkles over a compacted clay liner ( CCL ) and an aquitard underlain by an aquifer is examined. A two-dimensional finite element (2D FE ) model...

...H.-M. Wu; W.-S. Wang; Z. Zhang; F. Y. H. Fan; H.-H. Zheng A numerical–experimental framework is developed to optimise the design of geomembrane specimens for biaxial tensile testing. Specifically, the geometry and adhesive bonding method of specimens are optimised to maximise strain in the central...

...R. A. e Silva; F. B. Abdelaal; M. S. Morsy; R. K. Rowe Three blended polyolefin ( BPO ) geomembranes (GMBs) with nominal thicknesses of 1.0 mm (BzSw10), 1.5 mm (BzSw15), and 2.0 mm (BzS20) were immersed for 9.3 years in highly acidic (L1-pH 0.5) and highly alkaline (L8-pH 13.5) heap leaching...

... density polyethylene (HDPE) geomembrane, through equilibrium batch sorption tests, to assess its ability to minimise the migration of these contaminants. The sorption experiments show that the HDPE geomembrane exhibits varying degrees of uptake for different pollutants, in the following order: PFBS = TFMS...

...M. Ali; R. K. Rowe The effect of ageing at 85°C of extrusion welds of 1.5 mm-thick high-density polyethylene (HDPE) geomembrane, immersed in synthetic municipal solid waste leachate, is investigated with respect to its standard oxidative induction time (Std-OIT) and stress crack resistance (SCR...

...F. Y. H. Fan; R. Kerry Rowe; R. W. I. Brachman; J. Van Gulck To quantify the effects of differential settlement on leakage through a geomembrane (GMB) hole in waste (landfill/mine tailings) covers, field experiments were conducted at Queen's University Experimental Liner Test Site on two sections...

...M. A. Aparicio-Ardila; M. Kobelnik; C. A. Valentin; C. F. Palomino; L. P. Sabogal-Paz; J. Lins Silva This study investigates the degradation of textured High-Density Polyethene (HDPE) geomembranes (GMs) subjected to natural weathering for 8.5 to 10.5 years. The GMs, denoted as GM-W/B (white...

...R. F. M. Rarison; M. Mbonimpa; B. Bussière High-density polyethylene (HDPE) geomembranes (GMs) are frequently used as fluid barrier components of cover systems for mine site reclamation in regions that are prone to freeze–thaw cycles (FTCs). However, HDPE GMs are more susceptible to stress cracking...

...W. Francey; R.K. Rowe The stress crack resistance (SCR) of high density polyethylene (HDPE) geomembrane (GMB) fusion seams is examined for two 1.5 mm HDPE GMBs and a range of welding parameters. Results are reported for both unnotched and notched seams as well as their corresponding sheet material...

...W. J. Cen; X. H. Du; H. N. He; J. Yan; M. S. Rahman Laboratory tests were conducted to evaluate the influence of the positions of positive and negative electrodes on the electrical response of a leak in the geomembrane. A numerical evaluation was performed to model the laboratory conditions...

... alkaline, acidic and direct contact with cement environments. Based on the results, design considerations are provided for AF membrane applications. 25 05 2018 25 02 2019 05 06 2019 © 2019 Thomas Telford Ltd 2019 Geosynthetics Geomembranes Aluminium foil Reinforcing scrim...

...W. J. Cen; H. Wang; D. J. Li; L. S. Wen A series of uniaxial tensile tests was conducted to investigate the large-strain tensile behaviour of high-density polyethylene (HDPE) geomembranes with defects. The experimental optical technique of 3D digital image correlation (DIC) was used to measure...

...L. Zhang; A. Bouazza; R. K. Rowe; J. Scheirs The effects of a very low pH solution (pH = 0.5) on a high-density polyethylene (HDPE) geomembrane (GMB) are evaluated using accelerated ageing tests. The GMB specimens were incubated at 65°C, 75°C, and 85°C for up to 19 months. They were periodically...

...F. B. Abdelaal; R. K. Rowe; Y. G. Hsuan; R. Awad ABSTRACT: The effect of elevated temperatures, particularly between 95 and 115°C as encountered in some geoenvironmental applications, on the physical and mechanical properties of high-density polyethylene (HDPE) geomembranes (GMBs) is examined. Four...

...F.B. Abdelaal; R.K. Rowe; R.W.I. Brachman ABSTRACT: The susceptibility of a 1.5 mm thick high-density polyethylene geomembrane to brittle rupture from long-term stress cracking in a simulated municipal solid waste landfill liner is examined. The geomembrane was pre-aged in a leachate at 85°C...

...R.K. Rowe; F.B. Abdelaal; R.W.I. Brachman ABSTRACT: The performance of a 1.5 mm thick high-density polyethylene geomembrane (GMB) in simulated municipal solid waste landfill liners is presented. Accelerated ageing experiments were conducted in geosynthetic liner longevity simulators that allow...

...T.D. Stark; L.F. Pazmino; C.J. McDowell; R. Phaneuf ABSTRACT: This technical paper presents the results of a test pad at an operating municipal solid waste landfill that measured pressures applied to the primary geomembrane in the double composite liner system used at the site. The pressures were...

...M.J. Chappel; R.K. Rowe; R.W.I. Brachman; W.A. Take ABSTRACT: The length of the longest wrinkles formed in black, exposed high-density polyethylene (HDPE) geomembranes are compared for nine different field cases for a range of different conditions (base or slope; GCL, CCL (geosynthetic clay liner...

... polyethylene (LLDPE) geomembranes are compared based on both sorption and diffusion tests. Diffusion coefficients for the PVC geomembrane were in the range of 5.0–10 × 10⁻¹³ m²/s for diffusion from both the aqueous and vapour states. The range for LLDPE was 2.5–5.0 × 10⁻¹³...