Water control and void filling injection
DE NEEF® Leaks Stop Here: Fast, Proven, Durable.
Underground construction is a deadline driven business.
Problems that upset your schedule need to be solved FAST. Short term deadlines shouldn’t equal short term thinking. Every minute construction is stopped adds to the cost. When money is measured in minutes, you want the best, most effective, lasting and FAST leak sealing technology. 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 materials give the best results:
- Hydrophobic formulation avoids dilution and product loss during injection.
- Balanced viscosity and reaction profiles combine to bring the fastest leak sealing
- > 90% closed cell and no leaching give a lasting stopping effect with a proven service life of up to 120 years.
Our injection solutions:
- DE NEEF® 1C
- DE NEEF® HA Cut AF
- DE NEEF® HA Cut CFL AF
- TYTRO® SI 550/660
- TYTRO® DN
Our services:
- Special techniques such as DE NEEF® Combi-Grouting and DE NEEF® Combiblock supported by our technical experts and extensive test data to deliver a proven and durable result.
Soil Conditioning Polymers
Reliable solutions for high & low permeability soils
Our range of soil conditioning polymers allows for TBM productivity increase, diminution of wear & dust and enhanced transportation of excavated materials.
Our experts will recommend the most appropriate solution based on your project’s geology (clay content, hardness …) and the TBM technology.
CHRYSO®TBM solutions are designed to be compatible with all TBM foaming equipments and comply with the most stringent environmental standards.
Our solutions:
- CHRYSO®TBM SCF
- CHRYSO®TBM CP
- CHRYSO®TBM AAF
Our services:
- Product selection and application training.
Tail & Main Bearing seal greases
Safe, reliable and cost-effective solutions for brushes’ first or continuous fill
CHRYSO® TBM GRS range encompasses a wide range of tail seal greases adapted to EPB, slurry or double shield TBM for optimum consumption and reliability.
They allow for high sealing performance even under brush stress.
They are fire resistant and environmentally friendly.
Our solutions:
- CHRYSO®TBM GRS 20 & 30
- CHRYSO®TBM F 100 M
- CHRYSO®TBM F 100 L
Backfill grout solutions
Reliable solutions for A+B grouts, traditional or hybrid Backfill.
Our TBM backfill solutions benefit from decades of expertise in mix design, testing and in-field support.
CHRYSO® TBM range encompasses a wide range of chemistries enabling to meet all challenging jobsites requirements.
Our latest patented solution, CHRYSO®TBM SGS A+B Backfill Technology is a liquid admixture solution, providing outstanding stability and rapid gelling time to the mortar.
It offers superior filling performance and long-distance pumping capabilities while reducing the environmental footprint of A+B grouts.
Our solutions:
- CHRYSO®TBM
- CHRYSO®TBM SGS
Our services:
- Definition of a tailored mix design
- Grout performance qualification trials
- On-site dispensing equipment and technical support
Leak sealing repair and waterproofing injection
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
Our admixture solutions:
- DE NEEF® 1C
- DE NEEF® HA Flex LV AF
- DE NEEF® HA Flex SLV AF
- DE NEEF® HA Safefoam NF
- Gelacryl Superflex
Our services:
- Technical expertise supporting our applicators and contractors with method statements, technical solutions and extensive test data to deliver a proven and durable result.
