@article { author = {Alshkane, Younis and Hama Saeed, Safin}, title = {}, journal = {Journal of Garmian University}, volume = {5}, number = {2}, pages = {126-140}, year = {2018}, publisher = {University of Garmian}, issn = {23100087}, eissn = {25223879}, doi = {10.24271/garmian.332}, abstract = {}, keywords = {}, title_ku = {Effect of Freezing and Thawing on Physical and Mechanical Properties of Sedimentary Rock}, abstract_ku = {Rocks have been used as a building material throughout the history. The EngineeringProperties of rocks mainly depends on mineralogical composition and texture of therock type. Weathering processes influence the rock porosity in cold climate area. Thispaper studies the effect of weathering (freezing thawing cycles) on physical andmechanical properties of specific types of rock (sedimentary rocks). Freeze–thawcycles is one of the most important phenomena affecting the engineering propertiesof rocks. This study was conducted based on literature data to analyze the durabilityand stability of rocks throughout the physical and mechanical properties such as(density, porosity, Brazilian tensile strength, unconfined compressive strength andpoint load Index) of sedimentary rock specimens exposed to excessive amountfreezing-thawing cycles. Key factors that affecting the strength of frozen rocks wereanalyzed. Results showed that porosity and the intensity of freezing-thawing cyclesinfluenced Engineering properties of sedimentary rocks significantly. The loss inunconfined compressive strength is an important indicator for rock strength anddurability However, this test is extremely expensive and tedious. Therefore, differentcorrelations and Statistical models were developed using multiple regression analysesto predict the mechanical properties of rocks such as unconfined compressivestrength and tensile strength from other physical properties and corresponding tospecified number of F-T cycles. The models are very reliable with R 2 = 95% and can be used to predetermination of unconfined compressive strength and tensile strengthof sedimentary rocks.}, keywords_ku = {Freezing-Thawing cycles,Sedimentary Rocks,UCS,Brazilian tensile strength (BTS),Point Load index (I s(50) ),Pulse velocity (Vp),Dry density (γd)}, url = {https://jgu.garmian.edu.krd/article_67084.html}, eprint = {https://jgu.garmian.edu.krd/article_67084_c60b6d2277bbee15616642fd0b6a8081.pdf} }