APPLICATION OF COMPOSITE MATERIALS FOR REINFORCEMENT OF ARCHITECTURAL AND BUILDING STONE PRODUCTS

Abstract

Purpose. The purpose of this work is to generalize the main aspects of the natural stone products’ reinforcement technology and to establish tendencies in the strength characteristics of these products. Methodology. The degree of relevance of the researched topic is established, the general characteristic of reinforcement as a technological process is given and the work on the given subject is analyzed. Recommendations for the preparation of samples for performance studies of strength characteristics are implemented and described. Recommendations on the selection and features of the use of tools for cutting, reinforcing elements and fixing mixture are given. The constituent elements of the experiment aimed at determining the strength characteristics of the samples are developed and described. Based on the results of the received data, the calculation of the values of the basic strength parameters during the destruction of the samples under the action of bending loads is performed. Results. Research of technology of reinforcement of products from a natural stone allows solving a number of problems on a way to improve the quality and competitiveness of production of the stone processing enterprises. A holistic and scientifically substantiated description of the reinforcement technology allows to systematize the knowledge about this technology and standardize the optimal order of its use, as well as to provide grounds for further study of its main technological aspects. In addition, the concomitant experimental establishment of improving the strength parameters of products as a result of their reinforcement proves the actual benefits of using this technology to improve the strength characteristics of the final natural stone product. Scientific novelty. The algorithm of using the technology of reinforcing natural stone with composite materials with indication of the peculiarities of this process is investigated, systematized and described. The degree of change in the strength characteristics of products as a result of their reinforcement is studied empirically. The expediency of using the technology of natural stone products reinforcement by comparing the strength properties of reinforced and non-reinforced products is substantiated. Scientific significance. The practical significance of the obtained results is embodied in the possibility of their use for the development of methodological and specific statutory guidelines for the introduction of reinforcement technology under the conditions of stone processing enterprises and for further research to optimize the described technological processes. At the same time, the results of the study of the strength parameters of composite elements reinforced with natural stone products are the firm argument that proves the feasibility of industrial use of this technology.