CRACK REPAIRING MATERIAL COMPOSITION OF HEATING TYPE FOR REPAIRING CRACKS OF ASPHALT PAVEMENT AND CRACK REPAIRING METHOD USING THE SAME

摘要

The present invention relates to a heating-type crack repair material composition fort repairing asphalt pavement cracks, and a crack repair method using the same. According to the present invention, a heating-type crack repair material, in which styrene-butadiene-styrene, which is a polymer additive, a petroleum resin, a softener, and the like are mixed based on natural asphalt and a bitumen material, is used for crack sealing in the asphalt pavement. As a result, elastic restoration with respect to deformation at a high temperature is maximized, and cracking at a low temperature is suppressed, and thus an excellent common performance can be maintained after crack repair. In addition, an induced drainage backup material facilitating drainage is installed on the lower side of a crack repair part, so that rainwater is allowed to flow out to a gradient side, and then the heating-type crack repair material is applied to fill the crack repair part. As a result, it is possible to prevent rainwater from filling and pumping-up from below a crack part. In addition, the heating-type crack repair material is injected after a routing groove is formed to the left and right sides of the crack repair, so that not only the crack repair part but also the part below the surface of the asphalt pavement with surrounding cracks can be filled with the heating-type crack repair material.