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Pullout Behaviour of Geogrids Embedded in a Recycled Construction and Demolition Material. Effects of Specimen Size and Displacement Rate

Author

Listed:
  • Castorina Silva Vieira

    (CONSTRUCT, Faculty of Engineering, University of Porto, R. Dr. Roberto Frias, 4200-465 Porto, Portugal)

  • Paulo Pereira

    (CONSTRUCT, Faculty of Engineering, University of Porto, R. Dr. Roberto Frias, 4200-465 Porto, Portugal)

  • Fernanda Ferreira

    (CONSTRUCT, Faculty of Engineering, University of Porto, R. Dr. Roberto Frias, 4200-465 Porto, Portugal)

  • Maria de Lurdes Lopes

    (CONSTRUCT, Faculty of Engineering, University of Porto, R. Dr. Roberto Frias, 4200-465 Porto, Portugal)

Abstract

In recent years, environmental concerns related to the overexploitation of natural resources and the need to manage large amounts of wastes arising from construction activities have intensified the pressure on the civil engineering industry to adopt sustainable waste recycling and valorisation measures. The use of recycled construction and demolition (C&D) wastes as alternative backfill for geosynthetic-reinforced structures may significantly contribute towards sustainable civil infrastructure development. This paper presents a laboratory study carried out to characterise the interaction between a fine-grained C&D material and two different geogrids (a polyester (PET) geogrid and an extruded uniaxial high-density polyethylene (HDPE) geogrid) through a series of large-scale pullout tests. The effects of the geogrid specimen size, displacement rate and vertical confining pressure on the pullout resistance of the geogrids are evaluated and discussed, aiming to assess whether they are in line with the current knowledge about the pullout resistance of geogrids embedded in soils. Test results have shown that the measured peak pullout resistance of the geogrid increases with the specimen size, imposed displacement rate and confining pressure. However, the pullout interaction coefficient has exhibited the opposite trend with the specimen size and confining pressure. The pullout interaction coefficients ranged from 0.79 and 1.57 and were generally greater than or equal to the values reported in the literature for soil-geogrid and recycled material-geogrid interfaces.

Suggested Citation

  • Castorina Silva Vieira & Paulo Pereira & Fernanda Ferreira & Maria de Lurdes Lopes, 2020. "Pullout Behaviour of Geogrids Embedded in a Recycled Construction and Demolition Material. Effects of Specimen Size and Displacement Rate," Sustainability, MDPI, vol. 12(9), pages 1-19, May.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:9:p:3825-:d:355278
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    Citations

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    Cited by:

    1. Sven Schwerdt & Dominik Mirschel & Tobias Hildebrandt & Max Wilke & Petra Schneider, 2021. "Substitute Building Materials in Geogrid-Reinforced Soil Structures," Sustainability, MDPI, vol. 13(22), pages 1-15, November.
    2. Luis Alonso González Corrales & Rodrigo Cesar Pierozan & Gregório Luís Silva Araújo & Ennio Marques Palmeira, 2023. "Evaluation of Construction and Demolition Waste and Other Alternative Fills for Strip-Reinforced Soil Walls," Sustainability, MDPI, vol. 15(12), pages 1-22, June.
    3. Hailong Liu & Xiang Luo & Xingyao Jiang & Chunyi Cui & Zhen Huyan, 2021. "The Evaluation System of the Sustainable Development of Municipal Solid Waste Landfills and Its Application," Sustainability, MDPI, vol. 13(3), pages 1-17, January.

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