ABSTRACT

Hybrid fibre reinforced Engineered Cementitious Composites (ECC), is distinguished from regular concrete by its strain hardening behaviour. The present study deals with experimental investigation on the effect of hybrid fibers in the structural response of ECC column under cyclic loading. M60 grade ECC was used with crimped steel and polypropylene fibers in the ratio 0.75:0.25 with the total volume fraction of fibers fixed as 1%. The experimental test results were evaluated in terms of ultimate strength, maximum deflection, energy dissipation and it could be seen that ECC specimen showed better performance than control specimen. Due to the presence of both steel and polypropylene fibers, the strength, deflection, and energy dissipation capacity of the ECC column specimen were enhanced. Steel fibers play an important role in increasing the load carrying capacity and Polypropylene fibers, the ductility of a structural member.