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Complete restoration of tunnel

Application steps

Discover the application steps, the products used for this solution and other alternative products.

1

Scarified concrete

Scarifying the existing concrete layer through hydro-scarifying or milling.

2

Shotcrete with set accelerators MAPEQUICK and admixtures DYNAMON

Application of the first coat of shotcrete admixed with set accelerators and other admixtures.

3

Waterproofing membrane

MAPELASTIC TU SYSTEM

Application of the waterproofing membrane by spray using airless pump (or screw pump, pneumatic pump or electric pump) on perfectly dry substrate.

4

Shotcrete with set accelerators MAPEQUICK and admixtures DYNAMON

Application of shotcrete internal coating admixed with set accelerators and other admixtures.

5

Smoothing layer

MAPEGROUT T60

Create a smoothing layer with one-component cementitious-base ready mixed thixotropic mortar, so that a smooth coat for the subsequent application of finishing layers is obtained.

6

Protection layer

TRIBLOCK FINISH

Create the protection layer by applying three-component epoxy-cementitious thixotropic mortar by spray through screw pump and subsequent spreading using a metal trowel.

7

Finish

MAPECOAT W HRI

Apply the finishing epoxy paint in two coats on the clean and dry substrate, using a brush, roller or spray, up to 4 metres high on the surface.