Pavement Structure And Internal Drainage System

Pavement structural drainage system can remove free water that penetrated and stayed in pavement structures, which has important significance to highway construction of our country. This paper masters the research situations and the new developments home and abroad of this problem according to many international documents. And through many tests and theoretical analyses, this paper systematically studies the structural style, component material, hydraulic computation method, designed method about structural size and construction operation of pavement structural drainage system, which has important significance to design and construction of pavement structural drainage system in our country. This paper also recommends two kinds of permeable materials which are asphalt treated aggregate of grading type II and cement treated aggregate of grading type VI, and studies the performance of these permeable materials about highway. we hope research of this paper can speed up generalization and application of pavement structural drainage system in our country.