STUDY ON LONG-TERM DURABILITY OF LOW TIRE/ROAD ROLLING RESISTANCE ASPHALT PAVEMENT

Abstract

 This study verified the long-term durability of next-generation asphalt pavement with low rolling resistance (LRRAP). In the verification, the standard type LRRAP and the drainage-oriented type LRRAP were compared with the drainage asphalt pavement as the conventional pavement. The evaluation items were cracking, rutting, longitudinal profile, skid resistance, texture depth, and drainage performance. Durability was verified up to 1.2 million wheels (49kN equivalent load) by measuring each evaluation item for every 100,000 wheels by an accelerated loading test at PWRI's pavement test field. As a result, it was confirmed that all the evaluation item have the same durability as the drainage pavement.