Advancing sustainable road engineering in uzbekistan: the role of recycled materials and eco-friendly technologies in modern pavement design

Abstract

As the global construction industry pivots towards sustainability, road engineering in Uzbekistan must evolve to align with environmental and economic imperatives. This paper investigates the integration of recycled materials-such as reclaimed asphalt pavement (RAP) and crumb rubber-as well as renewable technologies in highway construction. Laboratory tests, field experiments, and cost-benefit analyses illustrate that sustainable materials can achieve comparable or superior performance while reducing the carbon footprint and lifecycle costs. The study proposes a roadmap for the adoption of green road engineering practices in Uzbekistan, fostering a transition towards climate-resilient infrastructure.