Article

Received 30.01.2025

Revised 28.05.2025

Accepted 24.06.2025

Retrieved from Iss. 117, P. 2, 2025

Pages 330 -339

Rykovtsev, O. (2025). RELEVANCE OF USING METHYL METHACRYLATE COMPOSITES FOR REPAIRING DEFECTIVE REINFORCED CONCRETE BRIDGE BEAMS UNDER SERVICE CONDITIONS. Automobile Roads and Road Construction, (117.2), 330-339. https://doi.org/10.33744/0365-8171-2025-117.2-330-339

RELEVANCE OF USING METHYL METHACRYLATE COMPOSITES FOR REPAIRING DEFECTIVE REINFORCED CONCRETE BRIDGE BEAMS UNDER SERVICE CONDITIONS

Oleksii Rykovtsev

The work is devoted to substantiating the relevance of using methyl methacrylate compositions to restore the load-bearing capacity of defective reinforced concrete beams of highway bridge superstructures under operational conditions. The aim of the study is to identify the main defects of reinforced concrete beams of highway bridges under service conditions and to justify the use of methyl methacrylate compositions for restoring their loadbearing capacity. Object of research: defective reinforced concrete beams of bridge superstructures. The results of inspections of reinforced concrete beams of highway bridges under operational conditions have shown that in many cases, the beams have various types of defects and damages. Defects such as the destruction of the protective concrete layer, chipping, and spalling of concrete on the beam surfaces due to the impact of oversized vehicles are observed, as well as cases of reinforcement corrosion in bridge beams. These defects lead to a loss of the beams’ load-bearing capacity and a reduction in the service life of bridges. It has been established that the main causes of defects in reinforced concrete beams of highway bridges are the unsatisfactory condition of drainage and waterproofing systems, as well as the impact of oversized road vehicles. The application of methyl methacrylate compositions for restoring the load-bearing capacity of defective reinforced concrete bridge beams using permanent metal formwork has been proposed

reinforced concrete bridge beams, highway bridges, methyl methacrylate compositions, permanent formwork, beam defects
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https://doi.org/10.33744/0365-8171-2025-117.2-330-339