Ebook: Analytical Formulas for Film Thickness in Compacted Asphalt Mixture

Paper. Transportation Research Record 1829, Washongton, D.C., Transportation Research Board, 2003, 26-32.A fundamentally sound model for film thickness calculation is developed using a model of asphalt concrete in which the aggregates are spherical, but with arbitrary size distribution. A recent result from statistical geometry is applied to determine the film thickness for any volume fraction of aggregates and any volume fraction of effective asphalt. The analytical formulas are presented, the details of the calculation are summarized and examples provided.