This paper presents a study on the rheological and mechanical properties of self-compacting concrete (SCC) with recycled steel fibers recovered (SFR) from waste tires. SFR were added separately to SCC mixtures at volume fraction of 0.5, 0.8, 1 and 1.5%. Water to cement ratio of 0.46, gravel to sand ratio of 1.0 and superplasticizer content of 1.0% (by weight of cement) were kept constant in the all SCC mixtures. Five SCC mixtures were tested for their rheological properties by using slump flow diameter, T500 slump flow time, V-funnel flow time, L-box ratio, and the segregation resistance test. The 28-day compressive strength, flexural strength and shrinkage were also investigated. The results showed that adding recycled steel tires fibers reduced the rheological characteristics of the self-compacting concrete. It was also revealed that, increasing the content of recycled steel fibers reduced slightly the compressive strength and shrinkage but improves flexural strength.
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics