Application And Research Of OGFC Porous Asphalt Pavement On Nan-You Expressway

OGFC--Open Graded Asphalt Friction Course with the performance ofdrainage,anti-skid and low-noise apply to many highways in rain region. However, the research of OGFC is only on it's start and the conclusion of it is not much which can be use for reference in our country. In this situation, the paper refered to the documents inside and outside and mastered the situation and developments of the interrelated question. On the base of the analysis of OGFC pavement character, the paper put forward the OGFC mixture demand of raw materials and the aggregate gradation design target. Base on the gradation design target and through large experimengs , the paper resdarch the OGFC aggregate gradation , optimum asphalt content, OGFC mechanical performance, dank performance, high-temperature stability, low-temperature stability and water stability performance and put forward the method of OGFC mix design .The result make it clear that OGFC mixture has better pavement performance. Better skid resistance. Better drain performance . In the end , the paper put forward construction technics of OGFC through the testing pavement.