Combined Reinforcement as a Means of Increasing the Durability of Rigid Pavement

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The article presents a result of experimental investigations, it was established that it is possible to produce fiber-reinforced concrete using a combination of steel and polypropylene fibers, which demonstrates compressive strength exceeding 80 MPa and flexural tensile strength exceeding 17 MPa. Combined reinforcement of concrete increases its overall strength, with the most significant improvement observed in flexural tensile strength. Based on the analysis of a set of experimental and statistical models of the strength parameters of fiber-reinforced concrete using steel and polypropylene fibers, the effectiveness of their application for heavy concretes used in rigid pavement structures has been confirmed. Quantitative relationships were obtained that characterize the influence of the content of steel and polypropylene fibers on compressive strength and flexural tensile strength. Given the complexity of modern pavement service conditions, combined reinforcement methods offer a highly adaptable and performance-oriented solution. Further experimental validation and numerical modeling are necessary to optimize fiber combinations and ensure their long-term effectiveness in rigid pavement design.

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Materials Science Forum (Volume 1170)

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75-79

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December 2025

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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