INJECTION OF CRACKS IN A RC BEAM WITH EPOXY RESIN USING THE GRAVITY FLOW METHOD

Abstract

The restoration of the load-bearing capacity of RC beams through crack injection is one of the most efficient and practical methods for executing repairs in the field of civil engineering. In the article, following an analysis of crack injection methods in RC structures, an economically viable method for injecting RC beams is proposed. The core approach of the proposed crack injection method involves the process of introducing epoxy resin into the crack, which occurs by gravity flow (without specialized equipment and pressure). The paper outlines a systematic process for preparing the crack in the RC beam for epoxy resin injection. The crack injection method was conducted comprehensively, including the restoration of the compressed concrete zone within the RC beam. The test results demonstrated the effectiveness of the crack injection method, as there were no new crack formations at the injection sites, and the load-bearing capacity of the RC beam was restored to 115%.