Effect of Hybrid Discrete Fibers on Mechanical Properties of FRC

International Conference on Materials Engineering and Science

Wtaife, Salam^1 ; Shaban, Alaa^2 ; Alsabbagh, Ahmed^3 ; Alshammari, Emad^4 ; Suksawang, Nakin^5

University of Misan, Misan, Iraq^1

University of Kerbala, Kerbala, Iraq^2

University of Babylon, Babylon, Iraq^3

University of Hail, Saudi Arabia^4

Florida Institute of Technology, United States^5

关键词: Concrete behavior;    Concrete matrix;    Fiber-reinforced concretes;    Hybrid composites;    Polyolefin fibers;    Splitting strength;    Strength of concrete;    Strength property;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/454/1/012170/pdf
DOI  :  10.1088/1757-899X/454/1/012170

来源: IOP

【 摘 要 】

Combining micro and macro fibers provide high performance of fiber reinforced concrete before and after concrete matrix cracks. Concretes including different volume content of hybrid discrete fibers were evaluated regarding compressive, elastic modulus, and tensile splitting strength. Eight cases include seven types of hybrid composites that were constructed using fiber combinations of PVA and Polyolefin fibers. Test results showed that the PVA, Polyolefin, hybrid fibers reduce the compressive strength properties of concrete, especially with high volume content (2%). On the other hand, hybrid fibers improve significantly the tensile strength of concrete that leads to change the concrete behavior from brittle materials to ductile.