Shaft / Metro station

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Shaft / metro station
Shaft / metro station

Segmental wall

High performance proven solutions for precast wall segments

Whatever your requirements and production constraints, we deliver through a wide range of high performances products and the support of our specialists from concrete design to project completion.

Premia & Advacast superplasticizers allow for outstanding placeability, low permeability and high early strengths concrete. Our specific lab testing program (Tera® Lab) ensure your segment production will benefit from optimized productivity. Clarol and Dem user friendly release agents increase your formwork shelf life and further enhance the concrete finish. Furthermore, our Eclipse, Serenis, CWA and synthetic fibers (Strux & Easyfinish) provide solutions for enhanced durability concrete in harsh environment. Finally, Enviromix and Turbocast solutions enable drastic reduction of your project’s carbon footprint.

 

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Our admixture solutions:

  • CHRYSO®Premia
  • CHRYSO®Turbocast
  • CHRYSO®Xel
  • CHRYSO®EnviroMix
  • CHRYSO®Dem
  • CHRYSO®Serenis
  • CHRYSO®CWA
  • ADVA® Cast
  • PIERI® Clarol
  • STRUX®
  • ECLIPSE®

Our services:

  • Concrete mix design and on-site technical support
  • Carbon content optimization
  • Durability testing
  • Release agents spraying equipment and training

Diaphragm walls

CHRYSO®Optima 1000, record braking technology.

Diaphragm walls require long workability retention concrete, excellent pumpability and no bleeding. CHRYSO®Optima 1000 technology enables the production and placement of concrete matching all these requirements : over 9H flat workability retention and no bleeding. Used for the construction of over 75 m depth diaphragm walls on the Grand Paris Express, Optima 1000 demonstrated its reliability and performance over 580 000 m3 of diaphragm wall dedicated concrete on this prestigious project.

 

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Our admixture solutions:

  • CHRYSO®Optima 1000 Technology

Our services:

  • Concrete mix design and on-site support
  • Durability testing
  • Pumping simulator

Repair mortars

BETEC® certified high performance mortars and grouts

Specifically engineered to comply with the highest industry standards and guidelines, BETEC® mortars and grouts bring solid, reliable, and consistent performance & application. A full range of normal and cold temperature products are available to allow year round grouting and repairs.

BETEC® mortars and grouts have a proven track record of consistent high quality and performance in technically demanding applications

 

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Our mortar and grouts solutions:

  • BETEC®

Our services:

  • Technical expertise to assist in choosing the best product and solution

Water control and leak sealing injection solutions

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.​

 

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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® Combi-Block supported by our technical experts and extensive test data to deliver a proven and durable result

Waterproofing solutions

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 25 year, 75 million m2 successful track record of protecting critical underground metro 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.

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

 

 

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Our waterproofing solutions:

  • PREPRUFE®
  • BITUTHENE®
  • INTEGRITANK®

Our services:

  • Waterproofing products and systems
  • Waterproofing design support
  • On-site technical support
  • Installation training
  • Environmental Product Declaration

Concrete Monitoring

Maturix® is an intelligent realtime concrete monitoring digital system

CHRYSO®Maturix enables concrete quality to be monitored and traced, construction times to be guaranteed and optimised according to the worksite environment, and the use of new low-carbon binders to be optimised.

 

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Our admixture solutions:

  • CHRYSO®Maturix

Our services:

  • Training in the use of the software
  • Study of Mix-Design