Tensile and Tearing Properties of a Geocomposite Mechanically Damaged by Repeated Loading and Abrasion

• Type: Article in International Scientific Journal
• Date: 2023-11-05

Authors

Maria de Lurdes Lopes (Author) FEUP; José Ricardo Carneiro (Author) FEUP; Filipe Almeida (Author) FEUP; Filipa Carvalho (Author) Other

Journal

Title: Materials

Vol. 16

Final page: 7047

ISSN: 1996-1944

Publisher: MDPI

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Scientific classification

CORDIS: Technological sciences

FOS: Engineering and technology

Other information

Authenticus ID: P-00Z-ANT

DOI: 10.3390/ma16217047

Abstract (EN): The behaviour of geosynthetics can be affected by many agents, both in the short and long term. Mechanical damage caused by repeated loading or abrasion are examples of agents that may induce undesirable changes in the properties of geosynthetics. The research conducted in this work complemented previous studies and consisted of submitting a geocomposite, isolated and successively, to two degradation tests: mechanical damage under repeated loading and abrasion. The geocomposite (a nonwoven geotextile reinforced with polyethylene terephthalate filaments) was tested on both sides (with or without filaments) and directions (machine and cross-machine). The impact of the degradation tests on the geocomposite was quantified by monitoring changes in its tensile and tearing behaviour. The results showed that, in most cases, the degradation tests caused the deterioration of the tensile and tearing behaviour of the geocomposite, affecting its reinforcement function. The decline in tensile strength correlated reasonably well with the decline in tearing strength. Changing the side and direction tested influenced, in some cases (those involving abrasion), the degradation experienced by the geocomposite. The reduction factors (referring to tensile and tearing strength) for the combined effect of the degradation agents tended to be lower when determined by using the common method (compared to those resulting directly from the successive exposure to both agents).

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 19