Underground solutions

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Tunneling solutions
Integrated solutions designed to secure durability, watertightness, and performance in cut-and-cover tunneling.
Admixtures for large precast elements, External Waterproofing, Leak sealing and Structural injections for immersed tube tunnel
Grouts, Greases, Injections, Soil conditioning polymers and Waterproofing injections for Tunnel Boring Machines
Water control injections, Embankment stabilization, Spoil treatment and Backfill grout solutions for Tunnel entrance construction.
Wet spraying, Water control & Waterproofing, SCL Tunnel Sprayed lining, Formwork filling & concrete lining for NATM and SEM for tunneling projects
Segmental & Diaphragm walls, Repair mortars, Water control & leak sealing injections and Waterproofing solutions for Shaft and Metro Station.
Release and curing agents, Fibers, Superplasticizers, Accelerators and Expanding gaskets for tunnel segments in Precast Plant.
Discover our wide ranges of Water reducers, Slump extenders and Fibers for Ready Mix Concrete for Tunneling

Global Tunneling Expertise

Chryso, GCP, Fosroc and Weber logos

Saint‑Gobain brings together the construction‑chemicals expertise of Chryso, a specialist in cement additives and concrete admixtures, GCP, a world-renowned expert in waterproofing systems, Fosroc, a leading provider of specialty construction solutions, and Weber, a worldwide leader in mortar-based solutions.

Built on close collaboration with tunnelling contractors, designers and project owners, our consultative, end‑to‑end approach spans from early design support through to on‑site execution.

Our solutions help tunnels and underground infrastructures control water ingress, perform in complex and aggressive ground conditions, extend service life, and deliver long‑term, durable, and sustainable protection.

Together, we develop innovative solutions to address today’s and tomorrow’s construction challenges.

Contact a tunneling specialist