Concrete with hybride reinforcements

Project data 

Short description

© Freshta Mujadidi (IMB TUD)

The strengthening and rehabilitation of existing structures are essential for extending their service life and reducing the environmental impact associated with demolition and new construction. Fiber-reinforced cementitious composites provide an effective approach to structural strengthening. However, the environmental impact of conventional synthetic fibers highlights the need to explore more sustainable reinforcement alternatives. Natural fibers, such as hemp, offer environmental advantages due to their renewable origin. Combining them with synthetic fibers, such as alkali-resistant (AR) glass fibers, offers the potential to develop hybrid reinforcement systems that benefit from the complementary properties of both materials.

This research project investigates the development and experimental characterization of layered natural–synthetic hybrid fiber-reinforced cementitious composites for structural strengthening. The experimental program focuses on the tensile properties of individual fibers, their interaction with cementitious matrices, and the mechanical behavior and bond performance of layered AR-glass–hemp reinforcement systems. The overall aim is to develop and evaluate hybrid reinforcement systems that combine the mechanical properties of synthetic fibers with the environmental advantages of natural fibers, providing a more sustainable solution for the strengthening and rehabilitation of existing concrete structures