Dynamic Properties of Asphalt Binders Containing Fiber Modifiers
Dynamic shear test and creep shear test were employed to investigate the dynamic properties of various fiber modified asphalt binders with the fiber content of 1.0%. The test results indicate that complex shear modulus of asphalt binders containing fibers are increased while the phase angles are decreased greatly, which implies that the asphalt binder is reinforced by the addition of fibers and the elastic property of asphalt binder is improved significantly, especially at high frequency levels. The total strain during loading period and the residual strain after the creep shear test of asphalt binders are reduced greatly by the addition of fibers. Furthermore, the creep modulus of fiber modified asphalt binders is increased and the development rate versus loading time of creep modulus is decreased.
Zhengyi Jiang and Chunliang Zhang
Q. S. Ye and S. P. Wu, "Dynamic Properties of Asphalt Binders Containing Fiber Modifiers", Advanced Materials Research, Vols. 97-101, pp. 724-727, 2010