Post-tensioning involves installing and tensioning high strength tendons in concrete to apply compressive stress, counteracting tensile stress from external loads. This technique helps minimize deformation and cracking and can significantly reduce the amount of concrete required in a structure.
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ApplicationsBridges
Buildings
Water infrastructures
Energy infrastructures
Our Solutions
Prestressing bars are a simple and efficient solution for securing and tying down structural elements together or transferring compressive forces to generate the necessary friction between the surfaces in contact.
For over 50 years, Freyssinet has played a key role in building construction, enhancing structural performance through the use of post-tensioned slab technology. Our expertise and technical know-how contribute to the delivery of increasingly functional, efficient, and durable structures.
All our post-tensioning systems are CE marked, guaranteeing high product performance, rigorous quality control, and advanced installation methods
Post-tensioning Benefits
Post-tensioning has revolutionised concrete construction by enabling thinner sections, longer spans, and greater durability. It has also simplified and accelerated bridge construction. Patented by Eugène Freyssinet in 1928, the technique was further developed by his company, STUP, later renamed Freyssinet in 1976. Today, post-tensioning is widely recognized and used globally.
Post-tensioning enables a broad array of geometric and architectural possibilities, allowing for intricate curves, varying elevations, and extended unsupported spans
Post-tensioning greatly minimizes the need for concrete and steel in both the structure and foundation. It also facilitates the swift assembly of precast elements through industrialized methods, ensuring faster and more efficient site progress.
A post-tensioning solution minimizes the need for joints, thereby reducing joint maintenance. In tanks, silos, and reservoirs, it greatly reduces the risk of cracked concrete, significantly lowering the risk of corrosion issues.
Post-tensioned structures use fewer construction materials, such as steel reinforcement and concrete, leading to lower greenhouse gas emissions from production and transportation. This typically results in carbon savings of 20 to 30%.
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