Analysis of Effect of Wire Mesh Layer in Hot Asphalt Mixtures on the Rutting Value

Abstract

Rutting is a permanent deformation that occurs in a hot asphalt mixture of flexible pavement caused by cyclic loading at extreme temperatures in heavy traffic conditions. This study aimed to analyse the value of rutting on hot asphalt mixtures using wire mesh layers. The research employed an experimental method to test the hot asphalt mixtures with four types of wire mesh layer placement modelling using a Wheel Tracking Machine (WTM). The findings from the study revealed that the best dynamic stability according to the specifications ≥ 2,500 passes/mm was obtained in the asphalt mixture, laying a 20 mm wire mesh layer from the surface of the test object at 3,145.45 passes/mm with a deformation speed of 0.013 mm/minute which was smaller, around 52.6% of the speed of deformation of the asphalt mixture without using a wire mesh layer of 0.028 mm/minute. The amount of dynamic stability for the other three modelling types was below the specifications. Therefore, it was concluded that the hot asphalt mixture by laying a 20 mm wire mesh layer from the surface of the test specimen could overcome the rutting problem in hot asphalt mixture.