Fiber Reinforced Polymers (FRPs')

CERS, following the technological evolution of the Structural Rehabilitation & Strengthening sector, has completed numerous Rehabilitation projects using FRPs (Fiber Reinforced Polymers).
These systems constitute High Performance Structural Reinforcement Systems that consist of composite fabrics (fiber reinforced polymers) and impregnating epoxy resins. The most usual forms are the single or unidirectional sheets, plates and anchors.
These fabrics can be made of carbon, glass, aramid or pultruded carbon strips, depending on the kind of the application and the structural needs for intervention. The different types vary, starting from the cost efficient glass fibers to the more durable high fracture aramid fibers and from the high strength (HS) to the high modulus (HM) carbon fibers.
For the long life endurance of a Structural Strengthening FRP System, additional properties such as durability, aging and corrosion resistivity are considered to be most important.
Most of the projects CERS has completed up to date, by using the FRP Systems met the following structural needs:

 - Confinement
 - Flexural Strengthening
 - Shear Strengthening
 - Impact Strengthening
 - Seismic Upgrade/Retrofitting
 - Masonry Strengthening
 - Replacement of missing or corroded steel rebars

The application could be of dry or wet type depending on the proposed system. Further information and FRP systems analysis can be reached through each manufacturer’s product PDS (Product Data Sheet) and proposed Method Statements.
In any case, the most important factor assuring the systems success, remains the rate of experience of the applicator, his training and certifications as well as the structural background and the ability to understand the way each application works. All the above CERS has to display for all levels of operation and mainly on site of each application each self.
Last but not least, in all of the application projects, CERS conducts pull off tests the results of which are presented to the final client, following the necessary quality protocols.