Structural performance of ultra-high-performance concrete beams with different steel fibers

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Strengthening of reinforced concrete beams using ultra high performance fibre reinforced concrete (UHPFRC) (2016, background): “Furthermore, in previous studies on monolithic beams [53] and columns [54], it was found that as the reinforcement amount was increased; the additional tensile stresses due to restrained shrinkage were increased, leading to reduced first cracking load values.”
An overview of microstructural and material properties of ultra-high-performance concrete (2019, result): “The UHPC with deformed fiber reinforcement provided an increment of 32, 70, and 205% in tensile strength, flexural strength, and strain capacity, respectively, but only insignificant improvements were observed in terms of compressive strength and elastic modulus as compared to SF reinforcement [90,9”