THE METHOD OF REPAIRING DEFECT INCLUDING CUTTING OF CONCRETE BUILDINGS WITH ASPHALT WATERPROOFING LAYER USING POLYUREA AND THE LAYER OF REPAIRING DEFECT

摘要

The present invention relates to a defect repair method and a defect repair layer of a concrete building including an asphalt waterproofing layer using polyurea. The defect repair method of a concrete building including an asphalt waterproofing layer using polyurea according to an embodiment of the present invention includes (1) a concrete base layer, an asphalt sheet formed on the concrete base layer, and a pressed concrete layer formed on the asphalt sheet , displaying a joint cutting line on the pressed concrete layer so that the moisture created between the waterproof layers formed on the pressed concrete layer can be efficiently released (s100), and (2) a joint along the joint cutting line When cutting, cutting the joint using a cutter to cut to the lower end of the pressed concrete layer (s110); (3) the joint cutting is cut to form a grid pattern, but installing a mosquito net jjolmae on the joint cut surface (s120); (3) forming a deaeration base at a point where the joint cut surface where the mosquito net jjollae is installed intersect (s130); and (4) coating the primer on the upper surface of the mosquito net jjollae and the pressed concrete layer ( s140); (5) forming a urethane layer on the pressed concrete layer coated with the primer (s150); step (s160); and (7) adding a sunscreen agent on the polyureata layer (s170).