Impact Performance of Steel Fiber-Reinforced Self-Compacting Concrete against Repeated Drop Weight Impact

The self-compacting concrete (SCC) was invented to overcome the compaction problems in deep sections, owing its perfect workability characteristics. Steel fibers when used with SCC would affect required fluidity characteristics but improve impact resistance. In this research, an experimental work conducted evaluate response of micro-steel fiber-reinforced SCC, under flexural impact. A 5.47 kg free-falling mass dropped repeatedly from 100 mm height on top center 270 mm-length beam specimens. Eight mixtures two design grades 30 and 50 MPa were prepared distinguish normal high-strength SCCs. distinguishing variable for each grade fiber content, where four volumetric contents 0%, 0.5%, 0.75%, 1.0% used. test results showed that resistance ductility significantly improved due incorporation fibers. percentage improvements noticeably higher at failure stage than cracking stage. For mixtures, maximum stages 543% 836%, respectively. Weibull’s linear correlations R2 values 0.84 0.97 obtained stage, which meant number followed Wiebull distribution.