Structures using conventional construction materials (e.g., concrete, steel, timber, masonry, among others) suffer from durability/aging problems, including deterioration problems at material and structural levels caused by harsh environmental conditions, climate change, and other various factors (e.g., over-loading, fatigue loading, impact loading). With global urbanization and industrialization, the increasing emissions of CO2, a major contributor to global warming, have become a common concern worldwide. As a result, the adoption of green materials and structures is imperative for achieving sustainable development goals including carbon neutrality and emission reduction, as outlined in The Paris Agreement (2016). Fiber-reinforced polymer (FRP) composites, characterized by high strength, low density, excellent corrosion resistance, and low carbon emission, have gained increasing attention from the research & industry communities.

Against the above background, we introduce this Research Topic, entitled “FRP Composites for Civil Engineering: Strengthening and New Constructions”. It aims to serve as a platform for communications among/between research and industry communities, focusing on research & applications of FRP in civil engineering/infrastructures. This Research Topic seeks to compile and disseminate the latest progress in the scientific research and novel applications of FRP materials in the following areas, including but not limited to buildings, bridges, railways, underground infrastructures, and marine structures. Key issues to be addressed include interfacial bond failure, long-term working performance, behavior under harsh environments, and novel AI-based performance evaluation methods etc. This Research Topic also invites contributions concerning the application of high-performance FRP, intelligent FRP, 3D printed FRP, and eco-friendly FRP materials.

For the above aims, we welcome contributions, including Review articles, Original Research articles, as well as case studies on related themes, including:

1. FRP-concrete composite structures;
2. FRP-steel composite structures;
3. FRP-concrete-steel composite structures;
4. FRP-wood composite structures;
5. Pultruded FRP profiles/tubes/cables/bars/grids;
6. Strengthening and rehabilitation of existing structures using FRP;
7. Interfacial bond behavior between FRP and concrete/steel/wood;
8. Durability of structures strengthened with FRP or new structures incorporating FRP (including all FRP structures);
9. Behavior of FRP structures in harsh environments and/or extreme loading conditions (e.g., hygrothermal conditions, freeze-thaw cycles, impact loading, explosive loading);
10. Health monitoring of structures strengthened with FRP or new structures incorporating FRP (including all FRP structures);
11. Life-cycle performance assessment of structures strengthened with FRP or new structures incorporating FRP (including all FRP structures);
12. Artificial intelligence (AI)-based performance evaluation of structures strengthened with FRP or new structures incorporating FRP (including all FRP structures).

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Frontiers in Materials

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