Abstract:
Most of the civil engineering construction that has been constructed worldwide mainly use
concrete as the primary construction material. But due to its weakness in tension resistance,
concrete cannot be used alone. To overcome such problems, fibers may need to be considered
as an additive. Workability, compressive strength, split tensile strength and flexural strength
test were performed to determine the physical and mechanical properties of hybrid waste tire
steel and banana fiber reinforced concrete. The average of three sample tests for each strength
was used to determine the strength of hybrid concrete and tested at 7, 14, and 28 days of curing
age. All cubes were made with 150 × 150 × 150 , cylinders with 100mm diameter
and 200 mm height and beams with cross-section 100 × 100 and length of 500mm size.
Control and three fibers reinforced concrete composites where casted using different
proportions containing 1% of total volume of concrete. The hybrid mix contains 0%, 0.5%, 1%
and 1.5% respectively. The study result revealed that the addition of hybrid fibers to the
concrete reduces workability of wet concrete. The compressive strength shows increment by
28.11%, 16.70 and 10.90% from control at 7, 14 and 28 day respectively. The split tensile
strength test result of hybrid waste tire steel and banana fiber reinforced concrete shows an
increment from control by 38.47%, 35.64% and 30.63% respectively when 1% of hybrid fibers
were added to the concrete. Flexural strength test result of hybrid waste tire steel and banana
fiber reinforced concrete shows an enhancement by 44.61%,22.12% and 16.49% from control
test result when 1%(0.75%SF + 0.25%BF) hybrid fiber were added to the concrete. It can
therefore, be concluded that optimum result was obtained in each hybrid mix when 1% of
hybrid waste tire steel and banana fiber was added to the concrete.
