Trace the water
Locate ingress and establish the pressure, accessible face and structural condition.
Tunnel Waterproofing & Concrete Protection
Explore waterproofing and lining approaches for tunnel concrete, underground galleries and structural joints.
Tunnel concrete protection concept.
UNDERSTAND THE SYSTEM
What goes into it.
Waterproofing an underground structure starts with understanding where water enters. The approach depends on access, water pressure, joints and the condition of the structure.
- 01
Waterproofing membrane or lining
A specialist may specify a polyurethane or polyurea system after reviewing access, water pressure and the structure.
- 02
Primer & repair materials
Preparation and compatible repairs provide the base for the specified waterproofing assembly.
- 03
Joint & penetration details
Movement joints and service entries need engineered details that remain continuous with the main lining.
Product options are confirmed for your project. Photos do not identify the exact materials used unless stated.
FROM SURFACE TO FINISH
How the work is approached.
A planning overview. The specified system and current technical data define the installation.
Repair and detail
Coordinate repairs, joints and service penetrations with the engineer’s waterproofing design.
Apply and inspect
Install the specified lining and check continuity and thickness before returning the area to service.
PLAN YOUR PROJECT
Let’s start with your surface.
Provide drawings, leak locations and service conditions. An engineer should determine the repair and waterproofing design for the structure.
- Source of water and direction of water pressure
- Joint detailing, cracks and repair access
- Substrate condition and the proposed lining build-up