Repair method for defective grouting filling of external steel wire sheath pipe for PSC bridge

摘要

The present invention relates to a method for repairing poor grouting filling of an external steel wire sheath pipe for PSC bridges. After forming a screw hole spaced apart with respect to the screw hole, the grouting filling material is injected through the screw hole to be repairable, so that the repair of the grouting filling defect of the external sheath pipe can be easily and quickly done.