TRC waterproofing system for arched bridges
Projektdaten
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Short description
Arch bridge prepared for waterproofing
The aim of the project is to develop an innovative rehabilitation method for sealing of masonry railway arch bridges against penetrating rainwater. For this purpose, a self-healing waterproofing layer made of textile-reinforced concrete is to be developed for the first time, combining the functions of a leveling layer, bituminous waterproofing, and protective concrete layer within a single system.
Thanks to its small layer thickness, the method is particularly suitable for bridge vaults with limited cover depth, for which no technically feasible or economically viable rehabilitation solutions currently exist. At the same time, the mineral-based waterproofing layer is intended to provide high durability and a long service life, significantly exceeding that of conventional bituminous waterproofing systems.
To achieve these project objectives, Bawax GmbH is developing a new fast-curing textile-reinforced concrete mix design for the waterproofing layer. Bekor GmbH is developing an application method that enables rapid installation and early load-bearing capacity. RWTH Aachen University is developing testing methods to investigate the load-bearing capacity and durability of the new waterproofing layer. TUD Dresden is analyzing and predicting the deformation behavior of the textile-reinforced concrete layer on the bridge vault using digital simulations.