1. Al-Qadi I. L. et al. (2009). “Determination of usable residual asphalt binder in RAP.” Rep. No. FHWA-ICT-09-031 Illinois Center for Transportation Univ. of Illinois at Urbana-Champaign Rantoul IL.
2. Al-Qadi I. L. Aurangzeb Q. Carpenter S. H. Pine W. J. and Trepanier J. (2012). “Impact of high RAP content on structural and performance properties of asphalt mixtures.” Rep. No. FHWA-ICT-12-002 Illinois Center for Transportation Univ. of Illinois at Urbana-Champaign Rantoul IL.
3. Brownlee M. (2011). “Utilization of recycled and reclaimed materials in Illinois highway construction in 2010.” Rep. No. 160 Illinois Dept. of Transportation Bureau of Materials and Physical Research Springfield IL.
4. Buttlar W. G. and Roque R. (1994). “Development and evaluation of the strategic highway research program measurement and analysis system for indirect tensile testing at low temperatures.” Transportation Research Record 1454 Transportation Research Board Washington DC 163–171.