Flexural Strength Of Long Waste Cans Fibers Reinforced Concrete Beam

Abstract

Flexural strength of concrete beam with 0.4 water-cement ratio made with waste long cans fiber and silica fume are investigated. 15 sample of concrete beam has been casted and tested for this research. The long cans fiber of 250 mm long, 10 mm wide and 1 mm thickness with various fiber directions of 0 o , 0 o + 90 o , 0 o + 45 o are used. The results show that by inclusion of cans fiber produces the flexural strength of 8.3 MPa for sample S1 which is higher 5.5 % compared to control sample S0. A comparison between fiber directions indicated that fiber direction of 0 o (S1) produce the highest flexural strength while sample S2 is the lowest flexural strength due to the presence cans fiber with 90 o direction cannot increase the strength, even reducing the concrete beam strength.. However Sample S2, S3 and S4 produce lower flexural strength compared to control sample. This might be due to de-bonding effect between two layers of drink cans fiber that result premature failure on the beam.