Load-Bearing Capacity of the Repaired RC Beam Using Sika MonoTop 4012

The study aims to evaluate the effectiveness of restoring RC beams using the high-strength mortar Sika MonoTop 4012. Considering the importance of the load-bearing capacity of reinforced concrete structures in civil engineering, this work focuses on restoration methods that enhance their strength and durability. The primary objective of the article is to conduct experimental research to determine the efficiency of restoring damaged RC beams, as well as to describe the methodology for performing these works. The study analyzes modern approaches and materials, including the use of high-strength mortars that significantly improve structural integrity and load resistance. The experimental results demonstrated that the application of Sika MonoTop 4012 and other materials effectively restores damaged areas, ensuring the reliability and safety of further exploitation of the structures. Additionally, the study investigates the propagation of cracks in concrete and the behavior of beams under various loads. The novelty of this research lies in its comprehensive approach to the analysis of RC beam restoration using modern high-strength materials. The developed methodologies can be utilized by both engineers and researchers for further scientific and practical developments in this field. The experiment resulted in restoring the load-bearing capacity of a destroyed RC beam to 131% of the depletion level of an undamaged beam. The findings of the study are significant for the development of modern civil engineering and can serve as a basis for ensuring the reliability and durability of building structures under prolonged operation and exposure to aggressive environments. Thus, this research makes a substantial contribution to the advancement of RC beam restoration technologies, offering effective solutions for ensuring their functionality and safety.