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Permeation properties of HDPE geomembranes
(2010-01-01)
This paper evaluates the permeation properties of HDPE geomembranes intacts and after exposure to UV rays (weathering) after 12 years. Water vapor transmission tests (WVT) were performed in HDPE geomembranes (1.00 mm). ...
Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests
(Zhejiang Univ Press, 2008-01-01)
Many factors such as the sunlight, intensity of radiation, temperature, and moisture may influence the degradation process of geosynthetics. UV stabilizers are used especially in polyolefin geomembrane to prevent the ...
Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests
(Zhejiang Univ Press, 2008-01-01)
Many factors such as the sunlight, intensity of radiation, temperature, and moisture may influence the degradation process of geosynthetics. UV stabilizers are used especially in polyolefin geomembrane to prevent the ...
Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests
(2008-01-01)
Many factors such as the sunlight, intensity of radiation, temperature, and moisture may influence the degradation process of geosynthetics. UV stabilizers are used especially in polyolefin geomembrane to prevent the ...
UV degradation of HDPE and pvc geomembranes in laboratory exposure
(2010-01-01)
This article evaluates the effects of UV degradation in HDPE geomembranes that were exposed both in laboratory and outdoor conditions. The laboratory tests were performed using a weatherometer assembled at EESC-USP in ...
Thermal degradation of geomembranes after exposure to heat
(Millpress Science Publishers, 2014)
The Effects of Weathering Exposure on the Physical, Mechanical, and Thermal Properties of High-density Polyethylene and Poly (Vinyl Chloride)
(Univ Fed Sao Carlos, Dept Engenharia Materials, 2013-11-01)
This paper presents results describing the physical, mechanical, and thermal properties (melt flow index - MFI and oxidative induction time - OIT) of high density polyethylene and poly (vinyl chloride) after weathering ...
Assessment of the interface shear strength between HDPE geomembrane and tropical soil by the direct shear test
(2018-01-01)
Liners are important impermeable constituents of sanitary landfill to contain the transport of pollutants to the unsaturated zone. The system can be made of different kind, being the compacted soil and geosynthetics widely ...
UV exposure of polymeric geomembranes
(Zhejiang Univ Press, 2008-01-01)
The break of polymer chemical bonds may occur due to penetration of sun short wavelengths. In sanitary landfills for instance, ultraviolet radiation affects uncovered materials and can be dangerous during the installation ...