TY - JOUR AB - © 2018 ICE Publishing: All rights reserved. In this paper, a sustainable approach for reducing lateral displacement in a track by increasing the confining pressure in the track substructure is demonstrated by placing a cellular rubber (tyre) membrane infilled with crushed ballast, as an alternative to a traditional capping layer of compacted granulates. Plate-load tests on a single tyre filled with gravel and subjected to a vertical load were carried out to investigate the interaction between tyre and gravel. A track model with tyre reinforcement was created to evaluate the performance of a tyre-reinforced capping layer under cyclic loading, and a numerical model was developed to determine the benefit that tyres would provide to railway substructure, especially when spent ballast is recycled as capping layer materials. AU - Sun, Q AU - Indraratna, B AU - Heitor, A DA - 2019/08/01 DO - 10.1680/jgrim.18.00030 EP - 137 JO - Proceedings of the Institution of Civil Engineers: Ground Improvement PY - 2019/08/01 SP - 127 TI - Behaviour of a capping layer reinforced with recycled tyres VL - 172 Y1 - 2019/08/01 Y2 - 2024/03/28 ER -