Abstarct: Abstract After discovering the destructive consequences of releasing mine tailings into the environment, the researchers proposed and implemented the stack plan in huge pits created for mining and the construction of mine waste tailing dams both of which generate serious problems, such as the contamination of groundwater resources. In addition, lack of proper design and failure to consider technical and administrative points lead to instability, rupture (e.g., liquefaction), severe and irreparable casualties, as well as environmental and financial damages and losses. Recently, due to advancements in engineering and technology, as well as taking into account the sharp decrease in water resources as a result of global climate change, a new project called “mine tailing dry stack” was proposed. This project is under research and development at the international level to use water resources optimally, return the water in the mining tailings by filtration, stack tailings safely, eliminate the risks caused by the failure of tailings dams, and reduce the lot coverage of the stack area. Iran is also suffering from a severe shortage of water resources and the above-mentioned risks are inevitable in this country; accordingly, this study attempted to understand the behavior and characteristics of Khaf iron ore mine tailings by conducting identification and mechanical tests. Following that, it presented a dry stack plan without any other additives aiming at reducing and optimizing water consumption, decreasing the stack lot coverage, creating a stable slope of the stack in Khaf iron ore mine tailings for the first time in Iran, and investigating the effect of cement percentage composition with tailings on the axial strength. In order to identify the tailings, the present study utilized mechanical granulation tests, hydrometry, Atterberg limits, as well as the tests of specific density, sand value, and standard density. In addition, simple, static triaxial, uniaxial, and direct cutting, as well as consolidation machines, were used to find out the bearing capacity parameters at six different humidity percentages. Considering the final moisture percentage of the tailings after the filtration process (about 20%), the constraints by the project employer to reduce the amount of moisture after filtration, and the impossibility of using any additives, due to an increase in costs, in order to enhance the resistance parameters, by applying the time factor to the stack process, the optimal humidity range can be reached within about 2 days after spreading the tailings in the stack place. Moreover, the compressive strength obtained from the uniaxial strength test showed that the samples with moisture percentages of 9, 11, 13, 18, 20, and 23 had increased by 400%, 500%, 1300%, 2600%, 5700%, and 3500%, respectively, in terms of a 7-day strength, compared to day 0. In addition, their plasticity index with moisture contents of 9, 11, and 13, as well as 18, 20, and 23 decreased to 30% and less than 20% of the initial values, respectively. The increase in the uniaxial strength of the samples without additives owing to the natural cementing process is due to the presence of silicon materials and the creation of stronger intermolecular bonds. Additionally, by examining the effect of 5% by weight of cement on the tailings, the result leads to an increase in the bearing strength of the sample with 23% humidity up to about 5000 kilopascals. Accordingly, the positive effect of more humidity on the amount of cementation process can be emphasized.