Exploring the Application of Fly Ash in Steel Fiber-Reinforced Concrete for Rigid Pavements

Abstract

The incorporation of fly ash in Steel Fiber Reinforced Concrete (SFRC) has emerged as a promising approach to enhance the performance of rigid pavements. Fly ash, a by-product of coal combustion, has long been recognized for its pozzolanic properties, making it an effective partial replacement for cement in concrete mixtures. When combined with steel fibers, fly ash can improve the mechanical properties, durability, and sustainability of concrete, which is crucial for the construction of rigid pavements that can withstand heavy traffic loads and harsh environmental conditions. This review paper explores the potential usage of fly ash in SFRC, highlighting the effects on compressive strength, flexural strength, durability, and crack resistance. Additionally, the paper discusses the environmental and economic benefits of using fly ash in rigid pavement construction, as well as the challenges and limitations associated with its use.