< p >Frequently, rainfalls with high intensity and/or low intensity but lasting for a long time cause landslides in many parts of the world (Lu and Godt, 2013). To be used in early warning systems, rainfall intensity-duration (I-D) thresholds generally are the key to predict the time and location of rainfall-induced landslides (Wieczorek and Glade, 2005). In the current study, the flume experiments are used to develop I-D thresholds and to investigate the effect of soil relative densities on it are described (Ahmadi-adli, 2014).]]>
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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).]]>
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