Application coal gangue in road construction

Coal Gangue is a waste from the raw coal which pollutes the environment seriously. However, the utilization of it in the road construction is a favorable attempt. Trough the application of the filling in road substructure and bottom subgrade layer, the construction craft and main points of the quality control were discussed. Also the process craft of the special subgrade and bridge head subgrade were discussed. Thus, a new material is expected to use in the road construction.