EXPANSION JOINT FOR ROAD BRIDGE AND MANUFACTURING METHOD FOR EXPANSION JOINT FOR ROAD BRIDGE

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method for an expansion joint when using an injection type foaming sealant superior in extensibility as a sealant in the expansion joint for a road bridge. SOLUTION: Injection type foaming sponge 8 is prevented from flowing in a rail joint opening 5 by filling the injection type foaming sponge 8 between a pair of vertical plate parts 2 and 2 after filling a granular material 7 in the rail joint opening 5, and the injection type foaming sponge 8 can also be closely spread all over around ribs 4 and 4 so that waterproofness of the expansion joint 11 can be secured. A surface of the injection type foaming sponge 8 in contact with the granular material 7 can be almost flatly finished. COPYRIGHT: (C)2004,JPO