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

P. Anbazhagan, D. R. Manohar, Divyesh Rohit

研究成果: Contribution to journalArticle査読

23 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)266-278
ページ数13
ジャーナルGeomechanics and Geoengineering
12
4
DOI
出版ステータス出版済み - 10 2 2017
外部発表はい

All Science Journal Classification (ASJC) codes

  • 地盤工学および土木地質学

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