Experimental study on fluidity and tensile properties of polypropylene and copper-plated steel fiber self-compacting concrete
LIU Xiangyun
MA Qinyong
WANG Zicheng
Abstract：The fluidity and tensile-compressive properties of hybrid fiber self-compacting concrete were studied as the starting point,polypropylene fiber(PP)and copper-plated steel fiber(CPSF)were added into self-compacting concrete(SCC)according to different volume contents.The fluidity of fiber SCC was analyzed by slump expansion test.The tensile properties of fiber SCC were analyzed by splitting tensile strength test.Microscopic morphology was analyzed by scanning electron microscopy(SEM).The results show that when the content of CPSF fiber is 1.00％and the content of PP fiber is 0.10％,the tensile strength is increased by 98.5％,and the crack development of SCC is effec-tively inhibited and the toughness is enhanced,so that the SCC is changed from brittle failure to ductile fail-ure.
Keywords：self-compacting concretecopper-plated steel fiberpolypropylene fiberfluiditytensile propertymicrostructure
Publication Date：2025-06-15
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 60-65 )