Redevelopment system for sewer - uses spirally positioned woven material hose filled with building material

摘要

Sewer tubes are provided with a new waterproof inner coating. The in-situ wall is cut-broken open, and rebuilt immediately behind this area. This is done via a hose-shaped woven material, which is applied to the wall in tight spiral layers, and filled with building material. The material hose has filler valves, and when empty, is held rolled-up on a large drum.