The Evaluation of Degradability Behavior of Sandstones from the Aghajari Formation in Dynamic and Static Durability Conditions


1 Department of Geology, Faculty of Sciences, Bu-Ali Sina University, Iran

2 Department of Geology, Faculty of Earth Sciences, Shahid Chamran University of Ahvaz, Iran


     In this research, mineralogical composition, physical properties as well as dynamic and static durability tests on 22 sandstone samples from Khouzestan province were administered in order to assess the degradability of these rocks. The rock durability of each rock was evaluated to be up to 15 cycles and different time cycles. Also, for a period of 42 days, the static durability test performed in distilled water and sodium sulfate solutions. The results showed that degradability of sandstones is related to their amount and type of cement and porosity percent. When an increase in amount of cement and a decrease in its porosity percent of the rocks are taken place, the degradability of these sandstones is decreased. All sandstones show that the degradability in the sodium sulfate solution is higher than that for the distilled water. The findings of this study reveal that the main outcropped sandstones in southern Khouzestan province have much lower cementation and higher degradability than that of their northern one. Thus, it is necessary to limit the use of these sandstones as building stones here.


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