Abstract: In recent decades, prestressed concrete girders have primarily been used in bridges worldwide. One of the common issues frequently observed in these prestressed concrete girders is the end-region cracking due to the application of prestressing forces. Numerous repair and prevention techniques have been proposed and investigated in this field, including the application of mortar, fiber-reinforced polymers wrapping, epoxy injection, post-tensioning, and strand debonding. This study seeks to elucidate a methodical review on the current body of knowledge (comprised of studies from 1982 to 2019) discussing the methods to repair and retrofit, and prevent the formation and propagation of end-region cracks in prestressed concrete girders.
Keywords: Prestressed Concrete; End-Region Crack; Fiber Reinforced Polymers; Epoxy Injection; Post-tensioning; Strand debonding.
Title: Prevention and Repair of End-Region Cracks in Prestressed Concrete Girders: A State-of-the-Art Review
Author: Yoon-Si Lee, Mahmoodreza Soltani, Karlee Schweigert, Sadit Maharjan
International Journal of Civil and Structural Engineering Research
ISSN 2348-7607 (Online)
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