Experimental study on mixing sleeper recycled aggregate concrete and stone ballast for eco-friendly railway applications

Amir Alizadehshiraz, Amirhossein Askari, Morteza Esmaeili, Emad Teymouri, Acoustical and Mechanical Engineering Laboratory , Universitat Politècnica de Catalunya , School of Railway Engineering, Iran University of Science and Technology

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit

Published online on May 14, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, Ahead of Print.
Railway sleepers, while made by significantly stronger concrete than in conventional construction, often end up crushed for steel recovery, leaving large amounts of concrete fragments underutilised and discarded in landfills. This study explores the ...