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Experimental Investigations on the Pull-Out Behavior of Tire Strips Reinforced Sands

Li, L-H; Chen, Y-J; Ferreira, PMV; Liu, Y; Xiao, H-L; (2017) Experimental Investigations on the Pull-Out Behavior of Tire Strips Reinforced Sands. Materials , 10 (7) , Article 707. 10.3390/ma10070707. Green open access

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Abstract

Waste tires have excellent mechanical performance and have been used as reinforcing material in geotechnical engineering; however, their interface properties are poorly understood. To further our knowledge, this paper examines the pull-out characteristics of waste tire strips in a compacted sand, together with uniaxial and biaxial geogrids also tested under the same conditions. The analysis of the results shows that the interlocking effect and pull-out resistance between the tire strip and the sand is very strong and significantly higher than that of the geogrids. In the early stages of the pull-out test, the resistance is mainly provided by the front portion of the embedded tire strips, as the pull-out test continues, more and more of the areas towards the end of the tire strips are mobilized, showing a progressive failure mechanism. The deformations are proportional to the frictional resistance between the tire-sand interface, and increase as the normal stresses increase. Tire strips of different wear intensities were tested and presented different pull-out resistances; however, the pull-out resistance mobilization patterns were generally similar. The pull-out resistance values obtained show that rubber reinforcement can provide much higher pull-out forces than the geogrid reinforcements tested here, showing that waste tires are an excellent alternative as a reinforcing system, regardless of the environmental advantages.

Type: Article
Title: Experimental Investigations on the Pull-Out Behavior of Tire Strips Reinforced Sands
Location: Switzerland
Open access status: An open access version is available from UCL Discovery
DOI: 10.3390/ma10070707
Publisher version: http://doi.org/10.3390/ma10070707
Language: English
Additional information: © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Keywords: Frictional resistance, geogrid, interface properties, load displacement behavior, pull-out tests, reinforced soil, rubber, waste tires
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1560289
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