Fracture behavior of lightweight multiscale fiber-reinforced ultra-high-performance concrete after exposure to high temperatures
Ultra-high-performance concrete (UHPC) is prone to uncontrolled crack propagation and brittle failure, especially under fire events. Steel, polyethylene, and carbon fibers can halt thermal cracking from micro to macro levels, effectively enhancing the crack resistance and toughness of UHPC. Additionally, cenospheres ar...