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Influence of size of granulated rubber and tyre chips on the shear strength characteristics of sand–rubber mix

Anbazhagan, P and Manohar, DR and Rohit, Divyesh (2017) Influence of size of granulated rubber and tyre chips on the shear strength characteristics of sand–rubber mix. In: Geomechanics and Geoengineering, 12 (4). pp. 266-278. ISSN 1748-6025

Full text not available from this repository.
Official URL: https://doi.org/10.1080/17486025.2016.1222454


Use of scrap tyres in isolation systems for seismic damping, requires a knowledge of the engineering properties of sand–rubber mixtures (SRM). The primary objective of this study is to assess the influence of granulated rubber and tyre chips size and the gradation of sand on the strength behaviour of SRM by carrying out large-scale direct shear tests. A large direct shear test has been carried out on SRM considering different granulated rubber and tyre chip sizes and compositions. The following properties were investigated to know the effect of granulated rubber on dry sand; peak shear stress, cohesion, friction angle, secant modulus and volumetric strain. From the experiments, it was determined that the major factors influencing the above-mentioned properties were granulated rubber and tyre chip sizes, percentage of rubber in SRM and the normal stress applied. It was observed that the peak strength was significantly increased with increasing granulated rubber size up to rubber size VI (passing 12.5 mm and retained on 9.5 mm), and by adding granulated rubber up to 30%. This study shows that granulated rubber size VI gives maximum shear strength values at 30% rubber content. It was also found that more uniformly graded sand gives an improved value of shear strength with the inclusion of granulated rubber when compared to poorly graded sand.

Item Type: Journal Article
Publication: Geomechanics and Geoengineering
Publisher: Taylor and Francis Ltd.
Additional Information: The copyright for this article belongs to the Taylor and Francis Ltd.
Keywords: Friction angle; sand–rubber mixture; secant modulus; shear strength
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 02 Jun 2022 06:03
Last Modified: 02 Jun 2022 06:03
URI: https://eprints.iisc.ac.in/id/eprint/73037

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