Abstract
The distinct fiber addition to concrete can improve weak performance in tension. Due to its higher performance, fiber hybridization is becoming more and more competitive. In this study, the hardened and durability characteristics of performance-based concrete reinforced with polypropylene, basalt and hooked end steel fibers are investigated. Total 12 mixes are prepared to evaluate the different characteristics of performance-based concrete. The influence of basalt fibers (0.2, 0.25, 0.5, 0.75 & 1%), polypropylene fibers ( 0.025, 0.03, 0.035, 0.05 & 1%), hooked end steel fibers (0.225, 0.475, 0.65, 0.75, 0.80 & 1%) to explore the impact of fiber synergy, various hybrid fibers with maximum volume fraction of 1% were used out of total concrete volume with and without copper slag (20% & 40%) replacement with fine aggregate are investigated on the hardened characteristics including; compressive strength, flexural strength, splitting tensile strength. Moreover, durability properties including; water absorption, electrical Resistivity, for performance-based concrete are also conducted. Out of the 12 mixes considered for this study, PP0.05B0.2S0.75CS40 performs better and exhibit excellent performance in terms of strength and durability.
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