Evaluation of exhumed HDPE geomembranes used as a liner in Brazilian shrimp farming ponds

The present work evaluated three high-density polyethylene (HDPE) geomembranes exhumed from two shrimp farming ponds in the northeast of Brazil with nominal thicknesses of 0.8 mm. The CAM sample was exhumed from the bottom liner, and the CAM1 sample was exhumed from the slope liner, both after 8.25...

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Autores principales:	Fernando Luiz Lavoie, Marcelo Kobelnik, Clever Aparecido Valentin, Érica Fernanda da Silva Tirelli, Maria de Lurdes Lopes, Jefferson Lins da Silva
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Geomembrane HDPE Shrimp farming ponds TG DSC DMA Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/326a52567c104a39acd618abd966225f
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spelling	oai:doaj.org-article:326a52567c104a39acd618abd966225f2021-11-28T04:32:25ZEvaluation of exhumed HDPE geomembranes used as a liner in Brazilian shrimp farming ponds2214-509510.1016/j.cscm.2021.e00809https://doaj.org/article/326a52567c104a39acd618abd966225f2022-06-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2214509521003247https://doaj.org/toc/2214-5095The present work evaluated three high-density polyethylene (HDPE) geomembranes exhumed from two shrimp farming ponds in the northeast of Brazil with nominal thicknesses of 0.8 mm. The CAM sample was exhumed from the bottom liner, and the CAM1 sample was exhumed from the slope liner, both after 8.25 years of field exposure in the same pond. The third sample, called CAM2, was exhumed from another shrimp farming pond after 3.0 years of service. It can be observed that the environmental exposure changed the CAM1 sample’s behavior compared to the CAM sample. Changes in viscosity, stress cracking, and polymer unprotection by the antioxidants demonstrated that the environmental exposure in the field changed the initial conditions of the CAM1 sample. The CAM2 sample presented a high-density value, brittle tensile behavior, and a different thermal behavior from the other samples, as observed by the thermogravimetry (TG). Moreover, the CAM2 sample showed an event in dynamic mechanical analysis (DMA) presenting a significant decrease in stiffness. The first heating of differential scanning calorimetry (DSC) analysis showed an event before the melting points for all samples analyzed. Finally, the application of CAM1 and CAM2 samples as a liner can cause a system failure.Fernando Luiz LavoieMarcelo KobelnikClever Aparecido ValentinÉrica Fernanda da Silva TirelliMaria de Lurdes LopesJefferson Lins da SilvaElsevierarticleGeomembraneHDPEShrimp farming pondsTGDSCDMAMaterials of engineering and construction. Mechanics of materialsTA401-492ENCase Studies in Construction Materials, Vol 16, Iss , Pp e00809- (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Geomembrane HDPE Shrimp farming ponds TG DSC DMA Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Geomembrane HDPE Shrimp farming ponds TG DSC DMA Materials of engineering and construction. Mechanics of materials TA401-492 Fernando Luiz Lavoie Marcelo Kobelnik Clever Aparecido Valentin Érica Fernanda da Silva Tirelli Maria de Lurdes Lopes Jefferson Lins da Silva Evaluation of exhumed HDPE geomembranes used as a liner in Brazilian shrimp farming ponds
description	The present work evaluated three high-density polyethylene (HDPE) geomembranes exhumed from two shrimp farming ponds in the northeast of Brazil with nominal thicknesses of 0.8 mm. The CAM sample was exhumed from the bottom liner, and the CAM1 sample was exhumed from the slope liner, both after 8.25 years of field exposure in the same pond. The third sample, called CAM2, was exhumed from another shrimp farming pond after 3.0 years of service. It can be observed that the environmental exposure changed the CAM1 sample’s behavior compared to the CAM sample. Changes in viscosity, stress cracking, and polymer unprotection by the antioxidants demonstrated that the environmental exposure in the field changed the initial conditions of the CAM1 sample. The CAM2 sample presented a high-density value, brittle tensile behavior, and a different thermal behavior from the other samples, as observed by the thermogravimetry (TG). Moreover, the CAM2 sample showed an event in dynamic mechanical analysis (DMA) presenting a significant decrease in stiffness. The first heating of differential scanning calorimetry (DSC) analysis showed an event before the melting points for all samples analyzed. Finally, the application of CAM1 and CAM2 samples as a liner can cause a system failure.
format	article
author	Fernando Luiz Lavoie Marcelo Kobelnik Clever Aparecido Valentin Érica Fernanda da Silva Tirelli Maria de Lurdes Lopes Jefferson Lins da Silva
author_facet	Fernando Luiz Lavoie Marcelo Kobelnik Clever Aparecido Valentin Érica Fernanda da Silva Tirelli Maria de Lurdes Lopes Jefferson Lins da Silva
author_sort	Fernando Luiz Lavoie
title	Evaluation of exhumed HDPE geomembranes used as a liner in Brazilian shrimp farming ponds
title_short	Evaluation of exhumed HDPE geomembranes used as a liner in Brazilian shrimp farming ponds
title_full	Evaluation of exhumed HDPE geomembranes used as a liner in Brazilian shrimp farming ponds
title_fullStr	Evaluation of exhumed HDPE geomembranes used as a liner in Brazilian shrimp farming ponds
title_full_unstemmed	Evaluation of exhumed HDPE geomembranes used as a liner in Brazilian shrimp farming ponds
title_sort	evaluation of exhumed hdpe geomembranes used as a liner in brazilian shrimp farming ponds
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/326a52567c104a39acd618abd966225f
work_keys_str_mv	AT fernandoluizlavoie evaluationofexhumedhdpegeomembranesusedasalinerinbrazilianshrimpfarmingponds AT marcelokobelnik evaluationofexhumedhdpegeomembranesusedasalinerinbrazilianshrimpfarmingponds AT cleveraparecidovalentin evaluationofexhumedhdpegeomembranesusedasalinerinbrazilianshrimpfarmingponds AT ericafernandadasilvatirelli evaluationofexhumedhdpegeomembranesusedasalinerinbrazilianshrimpfarmingponds AT mariadelurdeslopes evaluationofexhumedhdpegeomembranesusedasalinerinbrazilianshrimpfarmingponds AT jeffersonlinsdasilva evaluationofexhumedhdpegeomembranesusedasalinerinbrazilianshrimpfarmingponds
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Evaluation of exhumed HDPE geomembranes used as a liner in Brazilian shrimp farming ponds

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