Permanent deformation characteristic of asphalt mixture under coupling effect of moisture, overload and loading frequency

To evaluate the influence of vehicle load and driving speed on permanent deformation characteristic asphalt mixture in high temperature rainy areas, Hamburg wheel tracking test was conducted under different conditions by changing load, loading frequency environment. The coupling effect moisture, overload discussed. Meanwhile, three kinds anti-rutting agents commonly used engineering were selected, various also studied rutting test. results show that are important factors affecting mixture. Under low frequency, ability to resist generation development is poor. needs be considered when evaluating performance After addition agent, dynamic stability increases significantly first, then tends gentle dosage agent exceeds 0.45%. difference improvement resistance obvious, order PR. PLASTS (PR) > RESIN ALLOY (RA) Duroflex (Df). PR with 0.45% recommended improve deformation. research can provide some references for improving pavement areas.