Toughness Test of Waste Tires Steel Fiber Reinforced Concrete

4th Annual International Workshop on Materials Science and Engineering

Gao, Lingling^1

Department of Engineering Management, Shanxi Conservancy Technical College, Taiyuan, Shanxi

030027, China^1

关键词: Cement concrete;    Conventional steel;    Deflection curves;    Elastic-plastic Material;    Enhancement effects;    Road engineering;    Steel fiber reinforced concretes;    Waste tire powder;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/381/1/012048/pdf
DOI  :  10.1088/1757-899X/381/1/012048

来源: IOP

【 摘 要 】

In order to research the application possible of waste tires steel fiber reinforced concrete in road engineering, the effect of waste tires steel fiber and conventional steel fiber on cement concrete using ASTM C1018 were determined. The results show that: the waste tires steel fiber has a significant enhancement effect on the toughness of concrete, and it can be used as green road material as the waste tire powder. With the increase of the steel fiber dose, the loading - deflection curve after initial cracking is fuller, the secondary peak of the load is increasing, and the concrete is getting closer to the ideal elastic - plastic material. The toughness of concrete that reinforced by waste tires steel fiber is lower than that of conventional steel fiber. To achieve the same toughness index, the dosage of waste tires steel fiber required to be about 25%∼45% higher than conventional steel fiber.