Study on Indirect Tensile Stiffness Modulus of Sulfur Modified Asphalt Mixture

In order to find the reason why sulfur modified asphalt pavement has low temperature sensitivity,indirect tensile stiffness modulus index of different test temperature is used to analyze the mix temperature sensitive property.Then rutting test and TSRST test are used to verify the law of stiffness modulus.The test result indicate that sulfur modify technique can increase mix stiffness modulus in high temperatue and the same with normal asphalt in low temperature,thus the pavement integrated performance is improved.