ANALYSIS OF RESEARCH APPLICATIONS OF COMPOSITE TAPE FOR REINFORCEMENT OF WOODEN STRUCTURES

Abstract

In the XXI century, the construction industry is developing at a rapid pace. Competitors of the same material, but reduced in cross-section by strengthening them with composite materials, compete with large-sized structures.
 Composite materials are considered to have relatively new operational and physical-mechanical properties, which are created due to the joint work of two or more components that differ in structure, chemical composition, physical and mechanical characteristics. One of the first composite materials is considered to be reinforced concrete, which was widely used in the late XIX century. At the beginning of the XX century for the needs of shipbuilding, aviation, aerospace, etc., modern composite materials such as fiberglass, consisting of artificial continuous glass fibers and artificial polymer matrix invented by A.K. Burov and his colleagues in the 30s of last century [1]. During the Great Patriotic War, fiberglass plates were used instead of aluminum in aircraft construction. In the 1960s, carbon fiber was developed in the United Kingdom and boron in the United States, which gave impetus to the development of a new generation of composite materials with high modulus of elasticity and high strength, which significantly increased their scope. .
 It can be noted that most composite materials are well resistant to many chemical influences: alkalis, acids, chlorides, sulfates, nitrates and others. All of them are not dangerous to human health in normal operation with the use of personal protective equipment in the direct performance of reinforcement work. This allows them to be used both in industrial and agricultural construction where there is a direct impact of the external environment on the structure reinforced with composite materials, and in residential buildings without harm to residents.
 After analyzing the creation and use of composite materials to strengthen structures of different materials, as well as methods of their application and physical and mechanical properties, it is assumed that such materials can be perfectly combined with solid and glued wood structures, increasing load-bearing capacity while reducing their cross section.