The reinforcement attributes of multi-scale hybrid fiber throughout the uniaxial compression of ultra-low-weight foamed cement-based composites

A comprehensive experimental investigation of multi-scale fiber-reinforced ultra-low-weight foamed cement-based composites throughout the quasi-static uniaxial compression was presented in this work. The multi-scale hybrid fibers combinations have achieved 133% and 116% increment in compressive strength and specific strength, which were contributed to a comprehensive reinforcement in different compressive stages. This multi-scale fibers combination was deemed as desirable reinforcing elements to supplement each other. Based on a continuous constitutive damage model, the strain-softening behavior of the fiber-reinforced samples in compression was elucidated. This study has provided substantial supporting evidence for practical analysis and numerical simulation in fiber-reinforced cellular materials. (C) 2020 Elsevier Ltd. All rights reserved.