Title: Simulated Chloride Penetration into a Solid Slab Bridge Overlayed with Ordinary Concrete and UHPC

Author(s): Jun Wang and Yail J. Kim

Publication: Symposium Paper

Volume: 363

Issue:

Appears on pages(s): 149-161

Keywords: corrosion; overlay; solid slab bridge; ultra-high performance concrete

DOI: 10.14359/51742112

Date: 7/1/2024

Abstract:
The efficacy of ultra-high performance concrete (UHPC) overlays holds great promise for mitigating chloride-induced corrosion in reinforced concrete bridges. This research examines the corrosion resistance of a bridge structure through the application of simulation techniques to better understand the effectiveness of ordinary concrete and UHPC overlays. To represent the three-dimensional microstructure of ordinary concrete and UHPC, the Virtual Cement and Concrete Testing Laboratory (VCCTL) program is utilized. Additionally, an agent-based model is developed to investigate chloride penetration mechanisms within the concrete overlays. Furthermore, the structural response of the overlayed bridge under a corrosive condition is studied.