Articles
Authors: Ashish Karmacharya (The University of Texas at Arlington) , Mohsen Shahandashti (The University of Texas at Arlington) , Shih-Ho Chao (The University of Texas at Arlington)
This paper presents the implementation of precast ultra-high-performance fiber-reinforced concrete (UHP-FRC) panels in a repair project for airfield pavement at Dallas/Fort Worth International Airport. The use of UHP-FRC material results in substantial improvements to the sustainability of concrete structures, attributed to its dense microstructure and damage-resistant characteristics. These characteristics can significantly reduce the amount of repair, rehabilitation, and maintenance work, thereby giving the airfield pavements a longer service life. This implementation project used a novel approach for repairing concrete pavement that involves utilizing precast UHP-FRC panels in conjunction with a minimal amount of cast-in-place UHP-FRC to connect pavement sections without the use of dowel bars. Laboratory experimental results proved the feasibility of using this novel method for rapid pavement repair. Based on preliminary life-cycle cost analysis, repairing a typical airfield pavement using conventional cast-in-place concrete is approximately 45 times more expensive than using UHP-FRC precast panels over a 50-year analysis period. This novel repair method addresses the strong need to develop rapid and sustainable UHP-FRC materials for repairing runway, taxiway, and apron pavements that can be easily cast onsite without special treatments.
Keywords: UHP-FRC, repair, airport, pavement, runway, sustainability, life-cycle cost
How to Cite: Karmacharya, A. , Shahandashti, M. & Chao, S. (2023) “Full-Depth Rapid Repair of Airfield Rigid Pavements with Ultra-High-Performance Fiber- Reinforced Concrete Precast Panels (UHP-FRC-PCP) and Life-Cycle Cost Analysis”, International Interactive Symposium on Ultra-High Performance Concrete. 3(1). doi: https://doi.org/10.21838/uhpc.16716