Use of waste tire-chips in shallow footings subjected to eccentric loading-an experimental study
2019
Abstract Growing generation of waste tires represents a serious danger to the environment and human well-being. This paper focusses on applications of tire wastes in shallow footings subjected to eccentric loading. Presence of eccentric loads significantly reduces the load carrying capacity of the soil. Therefore, laboratory model tests were conducted on tire chip reinforced sand subjected to eccentric loading conditions. Parameters considered for the study were waste tire chip content, reinforcement depth and relative density while eccentricity of the loading was varied as 0.1 B and 0.2 B , where B is the width of the footing. A substantial increase in bearing capacity was observed at all strains. Based on the experimental results, the optimum quantity of tire waste and the depth of reinforcement recommended is 30% (by weight) and 1 B respectively. The improvements were more significant at higher eccentricities with bearing capacity ratio obtained as high as 5.77 and 7.46 at low and high strains respectively. Moreover, the beneficial effects of the proposed technique were visible at both the dense as well as loose states.
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