Long-Term Tensile Behavior of a High-Strength Geotextile after Exposure to Recycled Construction and Demolition Materials
The use of recycled construction and demolition (C&D) materials as an alternative backfill in the construction of geosynthetic-reinforced structures, such as embankments and retaining walls, has been pointed out as a sustainable and effective means of attenuating the environmental impacts associated with C&D waste disposal to landfill, while also reducing natural resource depletion. Creep is an important time-dependent mechanical property that must be considered when geosynthetics are used in reinforcement applications. In this study, a series of creep rupture tests was carried out to characterize the long-term tensile response of a high-strength geotextile typically used for soil reinforcement. To assess the potential chemical and environmental degradation induced by recycled C&D aggregates on the long-term response of this geosynthetic, the creep strain and rupture behavior of fresh specimens was compared with that of specimens that were previously exposed to recycled C&D materials and a natural soil (used as a reference) for a period of 24 months, under real environmental conditions. Test results have shown that the short-term tensile strength properties of this geotextile can be considerably reduced after exposure to the backfill materials. Conversely, for long-term conditions, the exhumed specimens led to higher estimates of the retained strength at the design lifetime, implying that the use of fresh specimens for creep rupture testing is a conservative (i.e., safe) procedure with regard to the analysis of the long-term strength of this geosynthetic. Similar effects were induced by the exposure of the geotextile to the recycled C&D material and the natural soil, which supports the feasibility of using recycled C&D aggregates as a sustainable replacement to conventional backfill materials of geosynthetic-reinforced structures.
- Record URL:
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
-
Supplemental Notes:
- This work is made available under the terms of the Creative Commons Attribution 4.0 International license, https://creativecommons.org/licenses/by/4.0/. 2022
-
Authors:
- Ferreira, Fernanda Bessa
-
0000-0002-1001-2297
- Pereira, Paulo
- Vieira, Castorina Sliva
-
0000-0001-6328-4504
- Lopes, Maria Lurdes
-
0000-0002-2390-4825
- Publication Date: 2022-5
Language
- English
Media Info
- Media Type: Web
- Pagination: 04022046
-
Serial:
- Journal of Materials in Civil Engineering
- Volume: 34
- Issue Number: 5
- Publisher: American Society of Civil Engineers
- ISSN: 0899-1561
- EISSN: 1943-5533
- Serial URL: http://ascelibrary.org/journal/jmcee7
Subject/Index Terms
- TRT Terms: Creep properties; Geotextiles; High strength materials; Recycled materials; Rubble; Tensile properties
- Subject Areas: Highways; Materials; Pavements;
Filing Info
- Accession Number: 01839239
- Record Type: Publication
- Files: TRIS, ASCE
- Created Date: Mar 23 2022 10:51AM