Advancements and Emerging Trends in Hybrid FRP Composites for Construction
摘要
Hybrid fibre-reinforced polymer (FRP) composites, which integrate different types of fibres within a polymeric matrix, have attracted considerable interest within the construction industry due to their enhanced mechanical properties, efficient fibre usage, and potential for tailored failure responses. These composites offer several advantages, including enhanced stiffness and strength, optimised failure mechanisms, and the capacity for pseudo-ductility, which enables the mitigation of sudden, brittle failure despite the use of fibres that are inherently brittle. This review paper provides an overview of the current state of research and development in hybrid FRP composites, with a particular focus on their applications in civil engineering. Therefore, it addresses the mechanical behaviour of hybrid FRP composites, including the main parameters affecting its performance and analytical approaches for its simulation, and discusses relevant areas of application, namely, (i) the development of hybrid FRP reinforcing bars for reinforced concrete (RC) structures, (ii) externally bonded strengthening systems, (iii) pultruded profiles for novel structural applications, and (iv) cables for long-span bridges. By exploring emerging trends and innovative approaches in the design and application of these materials, this paper offers insights into their future trajectory, providing a forward-looking perspective on their potential to transform construction technologies.