1. Al-Qadi, I. L., M. A. Elseifi, and S. H. Car. 2007. “Reclaimed Asphalt Pavement – a Literature Review”. Illinois Center for Transportation Series No. 07-001, FHWA-ICT-07-001.ICT1Cover.pub (psu.edu)
2. Optimization of Steel Slag Aggregates for Bituminous Mixes in Saudi Arabia
3. Bukowski, J., J. Youtcheff, and T. Harman. 2012. “An Alternative Asphalt Binder, Sulfur-Extended Asphalt (SEA)”. Federal Highway Administration, and Office of Pavement Technology. FHWA-HIF-12-037. Washington, DC.
4. Macro and microstructural characterisation of waste foundry sand reused as aggregate
5. EAPA. 2022. “Asphalt and Circular Economy”. European Asphalt Pavement Association. Asphalt and Circular Economy - EAPA.