A strong research & development approach

From the invention of prestressed concrete by Eugène Freyssinet in 1928, to the development of accessories designed to extend the lifespan of structural products in 2019, Freyssinet has consistently pushed the boundaries of innovation.

Our development activities, undertaken in close collaboration with external partners, are built on two key pillars: a strong research and development strategy driving technological progress across civil engineering, and the ability to deliver innovative, customer‑focused solutions tailored to project requirements.

  • 350
    Engineers dedicated to engineering & technical development
  • 3
    Laboratories and test centres
  • 300
    Active patents worldwide

Our main research areas

Performance

Pushing the limits of materials

We continue to push material performance further. Our advances in Ultra‑High Performance Fibre Reinforced Concrete (UHPFRC) ExoLeaf® have delivered a solution that is significantly more durable and up to three times stronger than conventional concrete. We have also enhanced our cable‑stay systems by using 2160 MPa strands, compared with the industry average of 1860 MPa, allowing us to design lighter and stronger structures.

Developing new processes

We actively improve productivity, particularly in repair solutions. By using ExoLeaf® Ultra‑High Performance Fibre Reinforced Concrete as a strengthening solution, we achieved clear advantages over traditional methods. Reduced percussion drilling minimised dust, noise, HAVS, and micro‑cracking. Lower material requirements cut site deliveries and reduced disruption to residents.

Solutions for whole life

Extending the life of existing structures

As infrastructure ages, demand for renovation continues to grow, and innovation plays a vital role. We employ specialised techniques to repair and protect concrete and steel, treat reinforcement bars, and apply high‑density carbon‑fibre systems with fast‑setting resins to enable rapid return to service. We have also developed new methods for lifting and replacing structural elements, expanding the scope of efficient and effective restoration.

Freyssinet has developed patented, lightweight, and less intrusive solutions for adding external post‑tensioning to existing bridge decks and circular structures (including silos, tanks, and large pipes) where existing post‑tensioning systems are no longer sufficient or reliable.

Increasing the life span of new structures

Freyssinet designs its prestressing and cable‑stay systems for a 100–120‑year service life. We are developing life‑extension solutions for bearing devices using low‑friction materials, alongside integrated systems that combine structural reinforcement with cathodic protection.

Environment

Freyssinet adopted the tagline ‘Sustainable Technology’ over a decade ago and continues to demonstrate how its core technologies deliver inherent environmental benefits by reducing material use and improving efficiency. We now focus on quantifying and reducing embodied CO₂, while developing solutions that minimise waste and improve the sustainability of site delivery and logistics.

Digital transformation

Digitalising our construction solutions

We use digital rehearsals to improve programme planning, refine method statements, and reduce risk, supporting a right‑first‑time approach on site.

Digitalising our sites

Digital tools enhance project management and enable more effective monitoring of productivity.

Remote monitoring for structural maintenance

Through drone technology, we are able to provide non‑intrusive inspections of hard‑to‑reach areas, improving monitoring efficiency and maintenance planning without disrupting operations.

Our research and development is firmly rooted in site experience, where real challenges inspire new ideas, driving us to meet emerging needs and continuously improve the way we build.

Marco Rubeo  
Technical Manager, Freyssinet UK

R&D example - Advancing our flagship technology

Globally, Freyssinet continues to advance cable‑stayed structures to improve performance, safety, and sustainability. We develop anchors for 2160 MPa steel strands, extending service life beyond the current 1860 MPa standard, while also improving damper efficiency and introducing innovative anti‑vibration solutions.

To meet the demands of challenging environments, we integrate de‑icing systems that prevent snow and ice build‑up in cold climates, reducing safety risks on bridge decks.

We also enhance aesthetics through LED lighting solutions, enabling cable‑stayed bridges to become striking landmarks. At the same time, we are developing recycling solutions that allow crews to separate steel cables from their ducts during replacement, reducing waste and reinforcing our commitment to sustainability.

Second Severn Crossing

Innovation where is matters most

Innovation is driven not only by research laboratories, but also by experience gained on site. Every project brings its own challenge, whether linked to safety, location or access, and we address these with expertise, technology and adaptable solutions to deliver precision, efficiency and performance.

This approach is underpinned by:

  • Strong engineering capability at every level, from our London‑based technical department to specialist teams across the Freyssinet Group.
  • A culture that encourages innovation and creativity, supporting continuous improvement.
  • A customer‑centred mindset, focused on developing tailored solutions that meet specific project needs.
  • Our passion drives us to go the extra mile to define the solution that best meets the customer’s needs.