DURABILITY OF GROOVING IN RUNWAYS FOR AIRCRAFT LOADS

Abstract

The effectiveness of grooving, in which transverse grooves are formed on the surface to increase the skid resistance, is reduced with the deficiency such as the collapse of the grooves due to heavy aircraft loads. As aircraft become larger and operation frequency increases, the grooves suffer deterioration such as loss of groove volume at high temperature and wearing of asphalt concrete at low temperature. To investigate the durability of the grooving against heavy-duty aircraft loads, a series of laboratory tests was conducted. As a result, modified asphalt is recommended for both new construction and overlay construction. Straight asphalt is, however, applied to overlay construction when a longer period is secured before groove installation.