Concrete support structure embedded in asphalt roadway, consists of vertical concrete bars fitted into grooves in horizontal cross beams, prevents 'track-forming' deformation of roadway

摘要

Transverse horizontal support beams are placed in the foundation layer of the road at intervals. The ends of longitudinal 'planks' of concrete are fitted into square section grooves in the cross bars. The asphalt is then poured over the foundation and support structure before being rolled. The structure stops sideways displacement of the tarmac by the constant pressure of vehicle tires along the same track.