USING TAGUCHI METHOD TO PREDICT THESELF-COMPACTING RUBBERIZED CONCRETE MECHANICAL AND FRESH PROPERTIES

M.A. Emara, Fatma.M. Eid, A.A. Nasser, M.A. Safaan

Abstract: The effect and optimization of using self-compacting rubberized concrete was studied. Design of experiment using Taguchi method was performed via orthogonal array to accommodate four factors with four levels. These factors were the percentage of fine rubber, coarse rubber, fly ash and viscocrete in the concrete mix. The signaltonoise ratio was used as well as the analysis of variance (ANOVA) to evaluate the characteristics performance of self-compacting rubberized concrete (SCRC). Rubberized concrete can be improved using the concrete proportioned as selfcompacting concrete. The results indicated that a reduction in compressive strength increasing rubber content but there was an increase in impact resistance. However, the replacement of 10% of coarse aggregate with coarserubber gave more strength than that of zero rubber mix by 124% at 90 days. Replacement of 20% of both fine and coarse aggregates with fine and coarse rubber respectively, increased impact resistance by 453% compared to the corresponding SCRC control mix.

Keywords: Rubber; Recycling; Self-compacting; Taguchi Method; ANOVA.

DOI: https://doi.org/10.15623/ijret.2018.0704016