Journal of the Korean Asphalt Institute ISSN:2234-0785(Print) 2635-9553(Online) 한국아스팔트학회지

Application of asphalt mixture on the railway track is under study in Korea, based on the review of the foreign country's experiences in materials, methods and specifications. The asphalt mixture used in railway track should be strong enough against spot deformation (similar to rutting mechanism). The current methods for evaluating of rut resistance of road pavement uses a pressure wheel, slowly tracking on the asphalt mixture slab to measure a final rut depth and dynamic creep rate. However, since the deforming mechanism of asphalt pavement under railway crosstie (sleeper) and temperature environment are different from the road pavement, a test method to measure the deformation resistance of asphalt mixture for railroad pavement should be devised in a different concept. The objective of this study is to initiate a feasibility study of developing a test protocol for measuring deformation resistance of asphalt mixture for railroad pavement. The test concept suggested in this study was found to acquire a positive consideration for railway environment.