Carbon fibre is commonly used for the structural reinforcement of concrete slabs, columns, bridges and many other structural elements. An extremely strong material, it is commonly applied externally. External application involves the use of carbon fibre polymer laminates. The laminate material is cut into large strips and applied directly to the surface of the concrete. This creates a strong bond with the structure, providing support and a high level of structural stability. With many different applications within construction, carbon fibre is a versatile and durable solution. Providing a light-weight and cost effective way to reinforce your structure.
Carbon fibre is a strong, stiff, specialised material. Also known as CFRP (Carbon Fibre Reinforced Polymer), it has very high tensile strength and a tolerance for high temperatures. The material experiences low thermal expansion under increased temperatures and has a low weight to strength ratio with its light makeup. This chemically resistant product is made up of crystalline filaments of carbon. Inside, carbon atoms are bonded together in long chains, giving the material its impressive qualities.
Most commonly in the form of an exterior laminate, CFRP is applied relatively easily. Firstly, the surface of the structure needs to be prepared. This involves removing anything on the surface that will prevent the carbon fibre from bonding directly. After a comprehensive clean, a primer is applied to the dry surface. Once the primer is dry, the adhesive liquid can be applied over the entire surface of the concrete. The carbon fibre fabric (cut to the appropriate size) is then placed onto the structure. After the fabric is smoothed out and any bubbles are removed, a secondary layer of the adhesive is applied to set the fibre in place. This soaks into the material, giving it the strength and stiffness required for full support.