Abstract
Tire production is increasing every year due to the increase in vehicle sales. The generation and disposal of waste are inherent to life itself and have presented very serious problems to the human community in China. Recently, some research has been devoted to the use of tire-recycled steel fibers in concrete. This study is focusing on the use of tire-recycled steel fibers. Several volume ratios of tire-recycled steel fibers were used in concrete mix to fabricate and test. Reinforced concrete obtains evidence and satisfactory improvement by adding tire-recycled steel fibers, mostly in compressive strength, splitting strength, flexural tensile strength, and flexural toughness. The strength and flexural toughness of the tire-recycled steel fiber reinforced concrete are lower than those of industrial steel fibers. To obtain concrete with approximately the same strength or toughness, the content of tire-recycled steel fibers should be about 1%-2% higher than that of industrial steel fibers. In addition, the load-deflection curve tends to become fuller after the first crack, and the second peak of the load continues to increase. The steel fiber reinforced concrete is getting closer to the ideal elastic-plastic material.
Highlights
With the development of the automobile industry, the recycling of waste tires has received more and more attention in China
Neocleous et al evaluated the flexural properties of concrete reinforced with tirerecycled steel fibers [7]. ey reported that recycled steel fibers (RSF) from waste tires have a great effect on improving the postpeak behavior of FRC
Meddah and Bencheikh investigated the mechanical properties of waste metallic fibers with different lengths in concrete [8]. ey have reported that the incorporation of waste fibers in different lengths leads to the best load-carrying capacity and flexural properties
Summary
With the development of the automobile industry, the recycling of waste tires has received more and more attention in China. Meddah and Bencheikh investigated the mechanical properties of waste metallic fibers with different lengths in concrete [8]. Yang et al studied the mechanical properties of UHPC reinforced with two types of recycled steel fibers from waste tires [10]. Erefore, using steel fibers extracted from waste tires in concrete would be the best way to make it more economical to manage them. It is environmentally friendly besides enhancing concrete engineering properties. E significance of this study is to investigate the mechanical performance of concrete with tire-recycled steel fibers, such as compressive strength, split tensile strength, flexural strength, flexural toughness, and fatigue properties. It will make tire recycling attractive to be used mostly in engineering fields
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