Mechanical Properties of Green Ultra-High Toughness Fiber Concrete
The green transformation of concrete is of great importance for China to achieve the dual carbon development goal,this paper,combining the principle of compact stacking with multi-level grain size of matrix components and using high dosing industrial waste ultra-fine fly ash as an important component,successfully develops a new low carbon ultrahigh toughness concrete(LC-UHTC).The results show that the ultimate tensile strain of LC-UHTC reached 6.38%,the tensile strength reaches 10.20 MPa,and the tensile strength increases by more than 60%compared with other similar materials.The tensile strength and strain energy of LC-UHTC are excellent at all stages of strain,indicating that LC-UHTC has a higher safety performance in practical application.The compressive strength of LC-UHTC reaches 84.35 MPa,which is 30%-86%higher than that of other similar materials.LC-UHTC shows comprehensive performance advantages in environmental protection,tension,toughness and compression,which can provide reference value for the green transformation of new concrete.
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