Search

Now showing items 1-4 of 4

Degradação de geomembranas de polietileno de alta densidade (HDPE) após exposição à intempérie e lixívia

Universidade Estadual Paulista (UNESP); University of Texas at Austin; Universidade de São Paulo (USP) (2010)

This paper presents some results of MFI and OIT tests performed on HDPE geomembranes of 0,8 and 2,5 mm that were exposed to weathering effects and leachate after 30 months (2,5 years). The aim of this work is the evaluation ...

Evaluation of stress cracking on geomembranes after accelerated tests

Universidade de São Paulo (USP); Universidade Estadual Paulista (UNESP) (2014)

This paper presents results of stress cracking tests performed in high density polyethylene (HDPE) geomembranes (GM). Stress cracking tests were performed in accordance to ASTM D5397: Notched Constant Tensile Load Test ...

Efeito da vinhaça na membrana impermeabilizante usada nos tanques de armazenamento

Universidade de São Paulo (USP); Universidade Estadual Paulista (UNESP) (2013)

This work evaluated the effect of vinasse (residue from sugar cane) in high density polyethylene (HDPE) geomembranes having in mind that it is deposited at temperatures of 80-90˚C on the geomembrane in storage tanks. The ...

Uso da cromatografia gasosa para avaliação da difusão em membrana de Polietileno de Alta Densidade (pead) em contato com hidrocarboneto

Universidade Estadual Paulista (UNESP) (2012)

The constant petrol fuel leak in gas stations has caused concern in many countries around the world. Those fuels have toxic organic compounds in their composition, like Polycyclic Aromatic Hydrocarbons (PAH), which are ...