ABSTRACT
The technique of textile reinforcing shows it’s advantages where conventional reinforcing methods reach their limitations.
Unlike conventional reinforcement, textile reinforcement can be positioned much more precisely in the building element requiring a considerably smaller concrete cover.
These textile reinforcements consist of glass- or carbon-fiber mesh which are produced in specialized weaving processes. Special glass or carbon reinforcement with assured spacing between the layers in particular ensure a high manufacturing accuracy through a precise regulation of the reinforcement distance.
The use of textile reinforcement is especially appropriate for applications in which very small concrete covers are required. This occurs mainly in cases when the height of a concrete element is strongly limited e.g. in subsequent concrete complements in the course of rehabilitation measures, retrofitting or proofing.
Curtain wall facings represent another application range for thin concrete panels.
Large-size panels with thicknesses down to 3,0 cm are highly interesting due to their small dead weight. Of course such small thicknesses require special demands towards planning and construction work. Details need to be designed painstakingly and extensively with special focus on the fixings.
The fixings are in special focus. Due to the thin concrete panels and due to the reduced effective anchorage depth the fixings have to be examined accurately. Only reduced concrete breakout areas can be provided so the constructions are very sensitive to tolerances.
Especially post installed fixings such as dowels or bolts are very sensitive to tolerances and installation conditions so the here examined fixing methods are pre installed fixings, i.e. the fixings are placed in wet concrete.
