METHOD FOR CONSTRUCTING CAST-IRON PIPE EXTERIOR CONCRETE AND DEVICE FOR CONSTRUCTING CAST-IRON PIPE EXTERIOR CONCRETE USED FOR THE METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method for constructing cast-iron pipe exterior concrete capable of shortening a time for repairing operation for a recess or a crack generated on the surface of the exterior concrete when performing the exterior work of the concrete to the outer periphery of the cast-iron pipe, and a casting device of the cast-iron pipe exterior concrete used for the method.;SOLUTION: A recessed part appearing on the outer surface of the exterior concrete 20 is removed by rotating an exterior frame 30 around the pipe axis of the cast-iron pipe 10 and applying a centrifugal force to the exterior concrete 20 in a state that the exterior frame 30 internally including the cast-iron pipe 10 and the exterior concrete 20 is laterally provided.;COPYRIGHT: (C)2010,JPO&INPIT