Investigating the Effect of Copper Mine Tailing on the Stress-Strain Behavior of Confined Concrete

One of the important factors that affect the concrete behavior is confinement. On the other hand, strength and ductility of concrete depend on the stress–strain characteristics of concrete, which they are also influenced by the confinement of the members (Ahmad and Shah, 1982). Copper mine tailing (CMT) were used to produce environmentally friendly bricks instead of shale and clay by Ahmari and Zhang in 2012. Onuaguluchi and Eren (2016) reported the properties of CMT material used as proper material and a potential additive in mortar and concrete specimens. Huang et al. (2012) studied the application of CMT material to prepare autoclaved aerated concrete. The sum of SiO2, Al2O3 and Fe2O3 in CMT material is 81.88%, which exceeds the 70 percent requirement for class N raw and calcined natural pozzolanas (ASTM C618). Therefore, CMT materials are expected the proper potential to produce pozzolanas (Thomas et al. 2013).