{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T18:33:14Z","timestamp":1772303594918,"version":"3.50.1"},"reference-count":34,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2021,8,13]],"date-time":"2021-08-13T00:00:00Z","timestamp":1628812800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Construction Materials"],"abstract":"<jats:p>The present work evaluated two high-density polyethylene (HDPE) geomembranes exhumed from mining facility constructions in Brazil. The MIN sample was exhumed from a pond for water use for the iron ore process after 7.92 years of exposure. The MIN2 sample was exhumed from a spillway channel of a ferronickel tailing dam after 10.08 years of service. The physical evaluations showed high depletion for antioxidants that work in the temperature range of 200 \u00b0C. The samples presented brittle tensile behavior and had similar behaviors between stress cracking and tensile. Low tensile elongation values and low-stress crack resistance were noted. The MIN2 sample presented a higher melt flow index (MFI) value and lower stress crack resistance. Thermogravimetric curves (TG) under synthetic air purge gas evaluation showed that both samples presented a similar behavior during the evaluation but had several mass losses. The results showed that exothermic and endothermic events occurred with loss of mass and showed no combustion events in the differential thermal analysis (DTA) curve evaluation. Differential scanning calorimetry (DSC) analysis showed no changes in the samples\u2019 behavior. Thus, the results of tensile, stress cracking, and viscosity properties can demonstrate that changes in polymer structure occurred after field exposures.<\/jats:p>","DOI":"10.3390\/constrmater1020009","type":"journal-article","created":{"date-parts":[[2021,8,13]],"date-time":"2021-08-13T09:22:38Z","timestamp":1628846558000},"page":"122-133","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Environmental Protection with HDPE Geomembranes in Mining Facility Constructions"],"prefix":"10.3390","volume":"1","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1242-3708","authenticated-orcid":false,"given":"Fernando Luiz","family":"Lavoie","sequence":"first","affiliation":[{"name":"Department of Civil Engineering, Mau\u00e1 Institute of Technology, S\u00e3o Caetano do Sul 09580-900, Brazil"},{"name":"S\u00e3o Carlos School of Engineering, University of S\u00e3o Paulo-USP, S\u00e3o Paulo 13566-590, Brazil"}]},{"given":"Marcelo","family":"Kobelnik","sequence":"additional","affiliation":[{"name":"S\u00e3o Carlos School of Engineering, University of S\u00e3o Paulo-USP, S\u00e3o Paulo 13566-590, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2887-2834","authenticated-orcid":false,"given":"Clever Aparecido","family":"Valentin","sequence":"additional","affiliation":[{"name":"S\u00e3o Carlos School of Engineering, University of S\u00e3o Paulo-USP, S\u00e3o Paulo 13566-590, Brazil"}]},{"given":"\u00c9rica Fernanda","family":"da Silva Tirelli","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering, Mau\u00e1 Institute of Technology, S\u00e3o Caetano do Sul 09580-900, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2390-4825","authenticated-orcid":false,"given":"Maria","family":"de Lurdes Lopes","sequence":"additional","affiliation":[{"name":"CONSTRUCT-GEO, Department of Civil Engineering, University of Porto, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2226-4950","authenticated-orcid":false,"given":"Jefferson","family":"Lins da Silva","sequence":"additional","affiliation":[{"name":"S\u00e3o Carlos School of Engineering, University of S\u00e3o Paulo-USP, S\u00e3o Paulo 13566-590, Brazil"}]}],"member":"1968","published-online":{"date-parts":[[2021,8,13]]},"reference":[{"key":"ref_1","unstructured":"Rollin, A.R., and Rigo, J.M. 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