Low Temperature Performance Prediction Model of SMA-16 Modified Asphalt Mixture

Abstract

Using the orthogonal design method to design 25 group SMA-16 modified asphalt mixture, small beam bending and low-temperature creep test were done, the related models of the fractal dimension and the road performance evaluation index including low temperature bending failure strain εB and bending strength RB are established by using fractal theory. The low temperature performance of SMA-16 modified asphalt mixture can be predicted according to the gradation designed. This can reduce the test workload, improve work efficiency and offer the reference for engineering design.