STRENGTH, LOAD-DEFLECTION BEHAVIOR AND IMPACT RESISTANCE OF TWO-WAY SLAB FOR CONCRETE INCORPORATING WASTE ALUMINUM FIBERS

  • SHEELAN MAHMOUD HAMA
Keywords: Aluminum fiber; bond strength; impact resistance; energy capacity; load-deflection behavior

Abstract

This research investigated about the effectiveness of waste aluminum results from waste cans
of gassy drink, as fibers in concrete. strengths, load-deflection behavior under flexural load and
impact resistance under low velocity repeated impact load were investigated. Two length of
fibers were examined 40 mm and 20 mm for 0%, 0.5%, 0.75% and 1% fibers content. Results
showed that compressive strength has inconsiderable affected by adding fibers while splitting
tensile strength, modulus of rupture and impact resistance for concrete incorporating aluminum
fibers especially for 0.75% and 4-mm fibers have clear improvement. Compared to experimental
results, ACI equation underestimated the tensile strength of fiber concrete. Load –deflection of
beam with fibers showed a more ductile behavior at failure under flexural load compared to
reference one. Bond strength improved by adding aluminum fibers. Slabs that incorporating
aluminum fibers showed a higher energy absorbed, less deflection and smaller cracks width at
failure than the one without fibers under impact loads. From results, one can see that mixes with
0.75% fibers showed a best performance compared with other mixes. Finally, the 40 mm fiber
was more effective in improvement in concrete resistance than 20 mm fiber length.

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Published
2020-12-28
How to Cite
HAMA, S. M. (2020). STRENGTH, LOAD-DEFLECTION BEHAVIOR AND IMPACT RESISTANCE OF TWO-WAY SLAB FOR CONCRETE INCORPORATING WASTE ALUMINUM FIBERS. Journal of Duhok University, 23(2), 67-78. Retrieved from https://journal.uod.ac/index.php/uodjournal/article/view/909