METHOD FOR ANTICORROSIVELY REPAIRING OUTER SURFACE ANTICORROSIVE METAL PIPELINE

摘要

PROBLEM TO BE SOLVED: To execute repairing of an anticorrosive layer of an outer surface anticorrosive metal pipeline with excellent watertightness while maintaining flowing of fluid in the pipeline. SOLUTION: The method for anticorrosively repairing an outer surface anticorrosive metal pipeline comprises the steps of coating an anticorrosive layer released part with a non-heat shrinkable anticorrosive sheet 2 having an adhesive layer 21 on at least one surface with the one surface disposed toward an inside by overlapping it on an anticorrosive layer releasing end 12, and enclosing the layer 2 with a heat shrinkable sheet 3 having an electric heater 31. The method further comprises the step of heat shrinking the sheet 3 by heating of a heater wire 31 by energizing to pressurize a non-heat shrinkable anticorrosive sheet layer 1.