Effect of Steel Fibre from Waste Tyres on the Compressive, Flexural Strength and Workability of Concrete
Gana A.J, Braimoh S. O, Ajanaku A. D & Amodu M.F,
Department of Civil Engineering,
Landmark University, Omuaran, Kwara State
Email: gana.abu@lmu.edu.ng, braimoh.solomon@lmu.edu.ng, amadu.matthew@lmu.edu.ng
ABSTRACT
These studies evaluate the effects of steel fibres from waste tyres to determine the workability, compressive and flexural strength of concrete. Steel fibres were gotten from waste tyres by burning and cut into a length of 60mm, sand was used as fine aggregate while granite was used as coarse aggregate. Dangote cement was used as binder, mixed with portable water. The steel fibres were sectioned into different percentage which are 0%,0.2%,0.4%,0.6%,0.8%,1.0% by total volume of concrete in this study the shape of specimen used for compressive strength was cube by size 100
x100 x100mm while for flexural strength a rectangular beam of size 100 x 100 x 400mm was used. the mix ratio was by weight 1:1.5:3 using grade M20 concrete and 0.4 water/cement ratio a total of 54 samples were casted and cured for both compressive and flexural for 7, 21,28 days before testing. The result showed that there was an increase in the compressive and flexural strength at 7, 21,28days for both 0.2% and 0.4% with a value greater than the control value before three was a gradual decrease in the strength of the SFRC due lot of steel fibres present in the concrete as the percentage increases The result gotten from the slump cone test shows that there was a gradual decrease in the workability of concrete as the percentage of fibre increases Keywords Effect, Steel Fiber, Waste Tyres Compr, Compressive, Flexural Strength, Workability and Concrete
