COMPOSITIONS FOR SEALANT OF CONCRETE STRUCTURES AND REPAIR METHOD FOR CONCRETE STRUCTURES JOINT USING THE SAME

摘要

A joint composition of concrete structures according to the present invention includes a polymer resin and a filler. Moreover, a method for repairing a joint of concrete structures according to the present invention comprises the steps of: removing joints and backup materials of a joint part having joints of the concrete structures intensely deteriorated; cleaning with an air or water jet after removing impurities, the joints, and foreign materials of concrete by using a grinder, a diamond cupping machine, a sand brush, and a steel brush after removing a sealant installed before; drying the concrete joint part after the cleaning step; and inserting a backup material into a part where the joint part is going to be formed, injecting the joint composition of concrete structures, and curing. And the method is characterized by comprising the process of draining water by inserting a perforated drainpipe into underwater structures, underground structures, tunnels, bridges, connection slabs and ground structures contacting with water during the step of inserting the backup material into the joint part.