...R.K. Rowe; J. D.D. Garcia; R.W.I. Brachman; M.S. Hosney The effect on GCL hydration and dehydration, when subject to thermal cycles, of (1) GCL bentonite granularity (powdered vs. granular), (2) GCL geotextile type (scrim-reinforced nonwoven vs. woven), (3) subgrade macrostructure due to fines...

...S. Rajesh; S. Roy; V. Khan Geosynthetic clay liners (GCLs) are used in cover and bottom lining systems to mitigate contamination from landfills. During their service period, they are often subjected to varying net mean stress levels, temperature fluctuation, and water content, which could affect...

... composite liner systems (GMB/GCL) are among the most significant engineering innovations for pollution control and groundwater protection since their emergence in the early 1990s. However, the fate and migration of PFASs and their effect on the hydraulic and barrier performance of these liner systems...

...A. Ghavam-Nasiri; A. El-Zein; D. Airey; R. K. Rowe; A. Bouazza Desiccation of geosynthetic clay liners (GCLs) in composite lining systems is investigated experimentally. Field conditions similar to those encountered in brine ponds (high surface temperature and low overburden pressure of 20 kPa...

...M. Tincopa; A. Bouazza; R. K. Rowe; H. Rahardjo A new approach is presented to obtain the water retention curve of a geosynthetic clay liner (GCL) on the wetting path (i.e. when it is hydrating). This approach is based on a back-analysis process using data from a hydration test. The back-analysis...

...T.-K. Li; R. K. Rowe The self-healing of fully penetrating artificial defects (circular holes and rectangular slits) in geosynthetic clay liners (GCLs) on full hydration in deionized water and 10 mM calcium chloride (CaCl₂) solution under 2 kPa overburden stress are compared. Circular...

...W.A. Take; R.K. Rowe; R.W.I. Brachman; D.N. Arnepalli ABSTRACT: A black 1.5 mm geomembrane (GMB) and geosynthetic clay liner (GCL) liner were placed on both a 3H: 1V (18.4°) slope and a gently sloping (3%) base (latitude 44°34′15″N) and left exposed for 4.7 years. The observed solar radiation...

...A. Bouazza; W.P. Gates ABSTRACT: Geosynthetic clay liners (GCLs) are frequently used in lieu of, or as an augmentation to, compacted clay liners as secondary hydraulic barriers in municipal solid waste containment facilities. GCLs are lately being assessed for use in industrial and mining...

... measurements on the reliability index. The relationships between the internal shear parameters of the GCLs and the GCL-GM interfaces were obtained from McCartney et al. (2004) and are illustrated in Figures 1 a and 1 b, respectively. These shear properties are not independent...

...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...

...R.A. Beddoe; W.A. Take; R.K. Rowe ABSTRACT: Geosynthetic clay liners (GCLs) have the potential to act as excellent hydraulic barriers, and have been successfully used in numerous barrier system applications, including composite landfill liners. In order to function effectively in the role...

...M.J.A. Mendes; N. Touze-Foltz; E.M. Palmeira; P. Pierson ABSTRACT: The flow rates along the interface between damaged geomembranes (GM) and geosynthetic clay liners (GCL) placed on top of a compacted clay liner (CCL) were measured by means of laboratory tests performed with an apparatus especially...

... be performed cost-effectively with geosynthetic clay liners (GCLs). However, there is currently a paucity of literature related to aluminium migration through GCLs and the influence of this aluminium migration on the engineering behaviour of GCLs. This paper presents results of GCL hydraulic conductivity...

...F. Saidi; N. Touze-Foltz; P. Goblet A numerical study was performed in order to investigate the influence on the flow rate of the presence of defects in the geomembrane of a composite liner involving GCLs. In the approach presented in this paper, porous media in the composite liner, i.e...

...C. B. Lake; R. K. Rowe Test apparatus designed to examine volatile organic compound (VOC) diffusion through geosynthetic clay liners (GCLs) are described, together with procedures for evaluating the relevant diffusion and sorption parameters. Test results show that the rate of contaminant migration...

...F. Mazzieri; E. Pasqualini The results of an experimental test program for the permeability of a damaged, adhesive-bonded, geosynthetic clay liner (GCL) are presented. GCL specimens were damaged to simulate damage occurring during handling or installation. Either a portion of the GCL was removed...