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Tunnels

Waterproofing for tunnels involves using pre-formed synthetic sheet membranes with geotextile felt over shotcrete lining, or spray-applied systems for specific applications.

Waterproofing is carried out for tunnels over the primary shotcrete lining using most commonly pre-formed loosely laid synthetic sheet membranes combined with a protective geotextile felt to channelize and drain any water percolating from the strata through the primary lining into the side drain.

In certain specific applications spray applied systems can also be considered for use in tunnels.

Key Application Areas for Tunnel Waterproofing

Cover Tunnels

Tunnels

Advanced Tunnel Waterproofing & Structural Protection Solutions

01

PVC Membrane

A preformed membrane made of high strength PVC material and applied along the profile

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PVC Membrane

  • A preformed membrane made of high strength PVC material and applied along the profile of the tunnel to channelize ground water to the peripheral drainage system.
02

EVA Membrane

An Ethylene Vinyl Acetate Copolymer manufactured by processing synthetic polymers

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EVA Membrane

  • An Ethylene Vinyl Acetate Copolymer manufactured by processing synthetic polymers and applied along the profile of the tunnel to channelize ground water to the peripheral drainage system.

Explore Our Structural Protection Solutions

Underground Structures> </div> <div class=
Underground Structures

Includes parking, storage, services, and metro station basements.

Underground Structures
Wet Areas and Balconies> </div> <div class=
Wet Areas and Balconies

Waterproofing for toilets, kitchens, and utility rooms.

Wet Areas and Balconies
Podiums> </div> <div class=
Podiums

Extends over basements, parking, and landscaped areas beyond tower spaces.

Podiums
Roofs & Terraces> </div> <div class=
Roofs & Terraces

Designed for green spaces, foot traffic, or energy-efficient insulation.

Roofs & Terraces
Water Retaining Structures> </div> <div class=
Water Retaining Structures

Underground or above-ground RCC enclosures for treated/untreated water.

Water Retaining Structures
Swimming Pools> </div> <div class=
Swimming Pools

Complex surfaces above habitable spaces needing specialized treatment.

Swimming Pools
External Walls> </div> <div class=
External Walls

Insulation and Facade systems for building exteriors.

External Walls
Bridge Decks> </div> <div class=
Bridge Decks

High-performance waterproofing for concrete and steel bridges.

Bridge Decks
Tunnels> </div> <div class=
Tunnels

Pre-formed sheet membranes for effective water resistance.

Tunnels
Remedial Grouting> </div> <div class=
Remedial Grouting

Solutions to stop seepages based on structure type and severity.

Remedial Grouting
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