Immersed tube and cut & cover tunnels

Fully bonded, seamless, tough and durable waterproofing solutions developed to stand the test of time
INTEGRITANK® is a fully reactive elastomeric, cold spray-applied waterproofing system designed to outlast the design life of the tunnel. It is quick and easy to apply even around details, corners and penetrations, and provides a tough, durable, fully bonded membrane which is resistant to long term immersion in water. INTEGRITANK® can be electrically tested post application and prior to submersion and can be repaired whilst fully submerged.

Category creating, fully bonded, high-performance waterproofing solutions that provide continuous and durable protection preventing lateral water migration as well as ensuring full overlap compatibility.
PREPRUFE® waterproofing membrane has a 30 year, 75 million m2 successful track record of protecting critical cut & cover tunnels and station boxes across the world. PREPRUFE® membrane bonds to structural concrete, giving lifetime protection against groundwater, gas and chemically contaminated soil. Cold-applied, dual-adhesive overlaps provide superior safe performance in all site conditions.

INTEGRITANK® is a fully reactive elastomeric, cold spray-applied waterproofing system designed to outlast the design life of the tunnel. It is quick and easy to apply even around details, corners and penetrations, and provides a tough, durable, fully bonded membrane which is resistant to backfill and hydrostatic pressure. INTEGRITANK® can be electrically tested post application and prior to backfill to ensure a defect free finish is achieved.

PREPRUFE® pre-applied waterproofing membranes combined with INTEGRITANK® or BITUTHENE® post-applied membranes provide a fully integrated solution to achieve completely dry underground spaces.

DE NEEF® Leaks Stop Here. Fast, Proven, Durable.
Our DE NEEF® injection materials are developed to bring the shortest possible injection cycles and give lasting solutions that reduces the risk of recurrence to the absolute minimum.

DE NEEF® injection resins are formulated and produced to be not water soluble and have no dilution loss or leaching during and after injection to bring the shortest possible injection cycles and give lasting solutions. DE NEEF® injection resins are extensively tested with more than 90% closed cells and a tested service life of up to 120 years for durable and proven results.