Progress in the Study of the Influence of Fiber Types on UHPC Performance and Their Reinforcement Mechanisms
The incorporation of fibers can effectively enhance the mechanical properties of ultra-high performance concrete.In this paper,the effects of fibers on ultra-high performance concrete(UHPC)are systematically reviewed from the following aspects:(1)The strengthening mechanism of fibers on UHPC,mainly including:composite material mechanics theory and fiber spacing theory;(2)The common steel fibers in UHPC are summarized,and the effects of their types,shapes and contents on the compressive strength,flexural strength and fluidity of UH-PC are expounded.Hope to provide some reference for the future research of fiber reinforced concrete.
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