Effect of the filler particle size on the low and high temperature performance in asphalt mastic and concrete

Restrained cooling, time-to-failure and triaxial tests were performed on mastics and both dense and gap-graded asphalt mixtures prepared with two different fillers. Coarse and fine fillers produced from the same limestone quarry were used to produce mastics and mixtures with varying amounts of filler. Aggregate fractions were proportioned to give nearly identical gradations above the 63-micron screen but intentionally different gradations below …