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2. Asphalt Academy (2007) Technical guideline: the use of modified bituminous binders in road construction. TG1, 2nd edn. Asphalt Academy, Pretoria
3. Bonaquist R (2011) Mix design practices for warm mix asphalt, NCHRP Report 691. Transportation Research Board, National Research Council, Washington
4. D’Angelo J, Harm E, Bartoszek J, Gaylon B, Corrigan M, Cowsert J, Harman T, Mostafa J, Wayne J, Newcomb D, Prowell B, Sines R and Yeaton B (2008) Warm-mix asphalt: European practice, International Technical Scanning Program, Report No. FHWA-PL-08-007. The American Trade Initiatives, Alexandria, VA
5. Hurley GC, Prowell BD (2005) Evaluation of aspha-min zeolite for use in warm mix asphalt, National Centre For Asphalt Technology—NCAT Report 05-04. Auburn University, Auburn