BRIDGE FLOOR SLAB EXPANSION GAP WATER STOP/FLOOR SLAB WATERPROOF STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a floor slab waterproof structure for a bridge, for enabling simple and short-time construction without requiring a large-sized machine or heating device.;SOLUTION: There are provided a floor slab expansion gap water stop/floor slab waterproof structure and a construction method for forming the structure. The structure is a structure for performing water stop on a floor slab expansion gap of a bridge and waterproofing a floor slab, the structure comprising: a floor slab expansion gap water stop layer made from asphalt emulsion, the layer filling the floor slab expansion gap and being formed around the floor slab expansion gap; a floor slab waterproof layer made from normal temperature curing type rubber asphalt emulsion that is the same as that of the water stop layer or is different but kindred, the layer being formed on the whole area of the floor slab; and an asphalt pavement layer provided on the floor slab waterproof layer. The water stop layer and the floor slab waterproof layer function as an integrated expansion device. The structure further includes an expansion dispersion material, such as a reinforcement mesh, between the floor slab expansion gap water stop layer and the floor slab waterproof layer to make it possible to strengthen expansion followability and adhesiveness between the floor slab expansion gap water stop layer and the floor slab waterproof layer.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2018,JPO&INPIT