This article presents a study of the use of composite materials in strengthening building structures. Materials consisting of two or more components or phases are called composite. Now modern composite materials open up new opportunities for design in all areas of production. The construction industry is no exception. Laminates, canvases, nets, rebars and ropes made of high-strength fibers of various origins are among the most widely used in construction at the moment. The main components of any composite are high-strength fibers that absorb the load, and a stabilizing matrix that serves to transfer forces to the fibers. The following types of high-strength fibers are used in composites: glass fibers, carbon fibers, organic fibers, silicon-carbon, aluminum-silicon fibers, and others. With the help of composite reinforcement, it is possible to effectively strengthen normal and inclined sections of reinforced concrete structures.
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