A laboratory evaluation of factors affecting rutting resistance of asphalt mixtures using wheel tracking test

Rutting is one of the most common distresses in early damage to asphalt pavements. It can raise risk ride safety issues, accelerate pavement deterioration, and increase maintenance costs. To investigate factors that affect rutting resistance mixtures, internal (such as aggregate gradation, content, layer thickness), external (including temperature traffic loading), human compaction degree) were tested using wheel tracking tests. The test results showed mixtures be improved by designing a tightly interlocked skeleton Bailey method's primary control sieve, an optimal achieving sufficient compaction, maintaining thickness 2.5–3 times its nominal maximum size, softening point higher than temperature, avoiding overloaded vehicles. In highly rutted areas, it recommended use stone mastic with stable matrix styrene-butadiene-styrene modified highest temperature.