... shear apparatus has been developed, that uses a two-tier heating system to ensure efficient and uniform heating while minimizing heat loss. Three different interfaces, namely soil-geomembrane ( GMB ), geotextile ( GTX )-GMB, and soil-soil, have been investigated at four different ambient temperatures...

...Y. Önal; C. Kayadelen; S. Serin; G. Altay In the current study, the use of cement-coated geotextile ( CCG ) in subgrade stabilization was evaluated through static and repeated load tests. Static load tests showed that the use of CCG resulted in a maximum improvement factor...

...) in the unreinforced scenario. The same pressure was applied to reinforced scenarios, where geogrid and geotextile reinforcements with tensile strengths of 100 kN/m and 200 kN/m were placed at the subgrade level to mitigate swell-induced heave. Geotextile reinforcement reduced PVR by 85%, 78%, and 58% under swell...

... be observed, which affects the performance of these materials. As geosynthetics durability analyses must encompass each work condition, assessing the climate effects is essential for design purposes. This study exposed a nonwoven needle-punched poly(ethylene) terephthalate geotextile to natural weathering...

...J. Lin; T. D. Stark; A. Idries; S. Choi This paper provides insight into the causes of post-peak strength loss for textured geomembrane (GMX) and nonwoven geotextile (NGT) interfaces. The NGT can be part of a geosynthetic drainage composite (GDC) or a stand-alone NGT. The study used ring shear...

...G. Xu; J. Shi; Z. Liu; H. Zhang; Y. Gu Geotextile and geomembrane are widely used in landfill liner systems, but the relationship between geomembrane roughness and geotextile/geomembrane interface residual shear strength remains to be studied. In this paper, by using a large-scale ring shear...

...G. Xu; J. Shi Geotextile/textured geomembrane (GTX/GMBT) liner at the bottom of the landfill will be exposed to ultraviolet (UV) radiation after installation and before being put into use, but the interface shear behaviour has not yet been studied. In this paper, based on laboratory UV accelerated...

..., namely that maximum shear strength increases with a decrease in O_R. Furthermore, a gradual increase was observed in the improvement factor (I_f) due to geotextile reinforcement with an increase in O_R except for S25C75, representing 25% spherical...

...E. Odabasi; A. Y. Dayioglu; A. Demir Yetis; A. H. Aydilek Use of recycled materials instead of earthen materials is one way to improve the sustainability of highway infrastructure. Since geotextile filters and separators are used in such construction schemes, hydraulic compatibility of geotextile...

... rainfall characteristics and backfill soils. Layers of nonwoven geotextiles were used as reinforcement as well as in-plane drainage media. The results showed that the inclusion of internal drainage facilitated the dissipation of pore water pressure, thereby reducing the wall facing displacement...

... developed and described in this paper. A limited number of non-bias biaxial tension tests have also been performed on geogrids. Previous work in these areas is reviewed in this section. © 2020 Thomas Telford Ltd 2020 Geosynthetics Geogrid Geotextile Biaxial loading Resilient response In-plane...

... Telford Ltd 2020 Geosynthetics Geogrid Geotextile Expansive Clay Base Stabilization Field Evaluation Over the past few decades, applications involving the use of geosynthetics in roadway systems have become increasingly diverse. This includes their use to stabilize the base course...

... compost in landfill cover applications, hydraulic compatibility of the compost and underlying geotextile filters must be adequate. The hydraulic compatibility of various composts and geotextiles have been explored through laboratory long-term filtration (LTF) tests. Upon completion of the LTF tests...

...). The general expression linking tensile load (T_J) to reinforcement tensile stiffness (J) and tensile strain ε is 1 T J = J × ε 31 05 2019 08 07 2019 08 07 2019 © 2019 Thomas Telford Ltd 2019 Geosynthetics Tensile stiffness Geogrid Geotextile...

... shear tests and pullout tests were performed to obtain mechanical properties of RCA interacting with various geosynthetics. Long-term filtration (LTF) tests were performed to evaluate hydraulic conductivity of RCA-geotextile systems. Results showed that the RCA had an internal friction angle of 49...

... of different anchorage configurations on pull-out performance is still problematic. To study the influence of anchorage angles on pull-out resistance of the geotextile wrap around anchorage, two geometric control variables, namely, the top and bottom anchorage angles, were introduced and investigated...

...R. Plácido; F. H. M. Portelinha; M. M. Futai Laboratory and field investigation of time-dependent behavior of geotextiles reinforcing a fine-grained soil are evaluated herein. The field assessment consisted of analyses of two instrumented sections of a geotextile reinforced soil wall with identical...

...V. Kalpakcı; A. T. Bonab; M. Y. Özkan; Z. Gülerce The objective of this study is to evaluate the effect of the geomembrane/geotextile interface on the seismic response of small-to-moderate height structures. Three building models with first-mode natural frequencies changing between 2–4 Hz...

...R. M. Koerner; Y. G. Hsuan; G. R. Koerner A very frequently asked question regarding all types of geosynthetics is, ‘How long will they last?’ This paper answers the question for exposed geotextiles and geomembranes, assuming that they were properly designed and installed. Furthermore, it compares...

...W. Guo; J. Chu; B. Zhou Permeable geotextile tubes are usually made by sewing geotextile sheets together and then filling with clay slurry or sand. However, the tensile strength of a seamed woven geotextile material is usually only half of that of the seamless geotextile sheet. A new seam method...