The system consists of a waterproofing membrane mounted on an anchor grid, spaced with approximately 50cm to the shotcrete covered rock/mountain. On the inside, towards the traffic, the membrane is either covered with concrete elements or with shotcrete.
For shotcrete applications, Protan recommends geotextile (polypropylene fleece) laminated membrane for increased adhesion. This will minimize the shotcrete waste/rebound and reduce costs.
- Anchor grid
- Inner shotcrete
- Protan InfraPlan P15R/RX
Protan recommends to use InfraPlan P15R or P15RX for Tunnel Lining Type lll.