Experimental study and statistical analysis of lean iron ore concrete with high impact resistance

Impact tests were conducted using a specially made drop hammer impact device on concrete specimens (C60–C90) containing lean iron ore from mine waste as coarse aggregate to realize enhanced resistance in applications such pile driving. also equivalent conventional limestone for comparison. The statistical analysis results show that the number of impacts at initial and final cracking conformed Weibull distribution strength grade. was ~0.65–2.03 times greater than concrete. In this study, fracture energies C80 C90 maximum damage obvious, properties completely utilized. Consequently, linear relationship between failure its grade identified. Finally, use shown effectively reduce probability precast head bursting during