Cyclic Fatigue Durability of Woven Geotextiles for Use in Sustainable Waste-Dewatering Systems

Mag Geisielly Alves Guimarães (), Pedro Victor Garcia de Oliveira, Denise de Carvalho Urashima, Eleonardo Lucas Pereira and Beatriz Mydori Carvalho Urashima
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Mag Geisielly Alves Guimarães: Post-Graduation Program in Civil Engineering, Federal Center of Technological Education of Minas Gerais (CEFET-MG), Belo Horizonte 30510-000, MG, Brazil
Pedro Victor Garcia de Oliveira: Post-Graduation Program in Geotechnics, Federal University of Ouro Preto (NUGEO/EM/UFOP), Ouro Preto 35400-000, MG, Brazil
Denise de Carvalho Urashima: Post-Graduation Program in Civil Engineering, Federal Center of Technological Education of Minas Gerais (CEFET-MG), Belo Horizonte 30510-000, MG, Brazil
Eleonardo Lucas Pereira: Post-Graduation Program in Geotechnics, Federal University of Ouro Preto (NUGEO/EM/UFOP), Ouro Preto 35400-000, MG, Brazil
Beatriz Mydori Carvalho Urashima: Graduate School of Engineering, Osaka University, Suita 565-0871, Osaka, Japan

Sustainability, 2023, vol. 15, issue 18, 1-14

Abstract: Geosynthetics are increasingly used in geotechnical engineering to replace conventional solutions due to their cost-effective and environmental benefits. For example, geotextiles can be used in sustainable waste-dewatering systems to confine solid waste for final disposal. This study is presented to analyze the durability of a geotextile regarding cyclic fatigue induced during the pumping stages in these sustainable waste-dewatering systems. A polypropylene woven geotextile was used and subjected to cyclic tensile loading levels of 10%, 30% and 50% of the ultimate average tensile strength. We also used hysteresis loops with a frequency of 0.1 Hz at different numbers of cycles (10, 20, 30, and 90 cycles). With a 95% confidence level and response surface, the results show that increasing the tensile loading levels and the number of cycles made the geotextile lose its tensile strength. Laboratory experiments simulated scenarios where the geotextile was subjected to cyclic fatigue that might directly impact its strength–strain and hysteretic stiffness performance over its design lifetime. This study contributes to a better understanding of the durability of geotextiles to subsidize decision-making involving social, environmental, and technical impacts in waste-dewatering system applications.

Keywords: geosynthetics; durability; sustainable; cyclic fatigue; waste-dewatering systems; geotechnical engineering (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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