Analysis of Covering effect performance of highway asphalt pavement on Subgrade in Xinjiang

Through the investigation and analysis of Subgrade balance moisture of Xinjiang highway, The influence of Covering effect performance of asphalt pavement on subgrade moisture is significant. According to the testing of resilient modulus of subgrade with different water content on several kinds of typical soil in Xinjiang region , the influence of water content on resilient modulus of subgrade is great, Resilient modulus of subgrade decreases with water content augmenting.