Recent advances in the use of natural fibers in civil engineering structures

The recent boom in the construction sector, either for building new infrastructures or for retrofitting and strengthening of old structures, has placed a great demand for conventional materials, which often consume high energy and release high carbon. To overcome this challenge, there are efforts to explore bio-based materials as an alternative to conventional materials. This paper presents a state-of-the-art review of the development of plant-based natural fibers for construction applications. The mechanical properties of different types of natural fibers and their composite are reviewed. The suitability of these natural fibers for new construction and retrofitting of structures applications is discussed. Further, strategies that can be developed for incorporating natural fibers in place of conventional reinforcement are provided. Finally, research needs for further developing natural fibers for a wider range of construction applications are elaborated.