FRCM C-MATRIX system: thin-layer strengthening with an inorganic matrix
C-MATRIX is Fibre Net's range of FRCM (Fiber Reinforced Cementitious Matrix) systems for thin-layer structural strengthening of buildings and infrastructure, available in Greece through EKKAF.
How it works
The system creates a composite overlay of reinforcing meshes and inorganic matrices, ensuring effective stress transfer to the substrate with minimal increase in thickness (from 8 mm) and self-weight. Meshes are available in basalt-steel fibre, carbon, and alkali-resistant (AR) glass; the matrix is a cement-based or natural hydraulic lime (NHL) mortar, selected according to substrate compatibility, environmental conditions and the required performance level.
Applications
- Masonry piers and spandrels: increased shear and flexural-compressive capacity without altering original stiffness, with optional transverse connectors in critical sections.
- Arches and vaults: compensating for the masonry's lack of tensile strength, preventing hinge formation and kinematic collapse mechanisms; applied at intrados or extrados, continuously or in strips.
- Columns and piers: confinement with fibres perpendicular to the element axis, increasing load capacity and ductility.
- Reinforced concrete elements: shear and flexural strengthening, improved behaviour under cyclic and seismic actions.
- Anti-overturning protection: restraint of infill walls and secondary elements.
Advantages
- Strength increase without significant stiffness or mass increase — limiting undesired seismic effects.
- Thickness from 8 mm and flexible meshes, ideal for complex geometries and façades with decorative elements.
- Reversibility: removable without permanent damage — suitable for protected heritage.
- Suitable for high-humidity environments where FRP epoxies cannot be applied.
- Low weight, fast application, reduced site disruption.
- Low environmental impact with EPD certification.
Certification and design
C-MATRIX systems are assessed to EAD 340275-00-0104 (externally bonded composite systems with inorganic matrix for strengthening concrete and masonry structures) and the Italian FRCM identification guidelines (2022). Design follows CNR-DT 215/2018. Full declarations of performance are available per system configuration (mesh + matrix + adhesion promoter).
Request FRCM datasheets, declarations of performance and sizing support at info@ekkaf.gr.
Related systems
For full-section masonry strengthening at greater thickness see the CRM system; for maximum performance on concrete elements the FRP BETONTEX system.