EVALUATION OF SLAKE-DURABILITY TESTS AND THE USAGE OF SLAKE-DURABILITY INDEX IN ESTIMATING SHEMSKAK’S ROCKS UCS

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BASHIRGONBADI M.; OROMIEHEA A.; NIKUDEL M.R.; LASHKARIPOUR G.R.

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Journal: Iranian Journal of Geology Year:2010 | Volume:4 | Issue:13 Page(s): 13-26

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Title

EVALUATION OF SLAKE-DURABILITY TESTS AND THE USAGE OF SLAKE-DURABILITY INDEX IN ESTIMATING SHEMSKAK’S ROCKS UCS

Author(s)

BASHIRGONBADI M. | OROMIEHEA A. | NIKUDEL M.R. | LASHKARIPOUR G.R. | Issue Writer Certificate

Keywords

SLAKE-DURABILITY INDEXQ3

UNIAXIAL COMPRESSIVE STRENGTHQ3

SHEMSHAK FORMATIONQ3

SANDSTONEQ2

CLAY-BEARING ROCKSQ3

Abstract

Weatherablity of CLAY-BEARING ROCKS and reduction of their geomechanical properties with wetting and drying cycles, which determine with slake-durability test, is one of the most important challenges in construction of structures on such rocks. However, many investigations, including the investigation carried out on this research; show that determining SLAKE-DURABILITY INDEX of hard and strong rocks such as SANDSTONEs using the initiated method can provide useful information from geomechanical properties of such rocks. In this research, some slake-durability tests have been carried out on some samples from SHEMSHAK FORMATION and this index has been tested in different SANDSTONEs and CLAY-BEARING ROCKS this formation. Meanwhile, the effect of the number of cycles, period of time the sample is rotating in water and angularity of the rock samples on the slake–durability index as well as the relation between this index and UNIAXIAL COMPRESSIVE STRENGTH has been investigated. This study shows that the as the number of cycles increased the slake–durability index of SANDSTONEs (different types) and CLAY-BEARING ROCKS decreased. Investigation on the effect of the time period the sample was rotating in water indicated that this factor has meaningful effect on the studied index of SANDSTONE samples. However, the effect of the angularity of samples is quite considerable on the slake–durability index, so that in the samples with slake–durability index of above 98%, most of the angles are rounded at the end of the second cycle and there is a considerable differences between the SLAKE-DURABILITY INDEX in the first and second cycles of the angled samples and rounded samples. But the differences are much reduced in cycles three to five. In CLAY-BEARING ROCKS with SLAKE-DURABILITY INDEX of lower than 98%, the effect of the angled nature on this index is more than SANDSTONE samples, in cycles two and above. Investigation of the relation between the SLAKE-DURABILITY INDEX and UNIAXIAL COMPRESSIVE STRENGTH shows that the SLAKE-DURABILITY INDEX is an acceptable and appropriate mean of estimating UNIAXIAL COMPRESSIVE STRENGTH, especially in the SANDSTONEs.

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APA: Copy

BASHIRGONBADI, M., OROMIEHEA, A., NIKUDEL, M.R., & LASHKARIPOUR, G.R.. (2010). EVALUATION OF SLAKE-DURABILITY TESTS AND THE USAGE OF SLAKE-DURABILITY INDEX IN ESTIMATING SHEMSKAK’S ROCKS UCS. IRANIAN JOURNAL OF GEOLOGY, 4(13), 13-26. SID. https://sid.ir/paper/129293/en

Vancouver: Copy

BASHIRGONBADI M., OROMIEHEA A., NIKUDEL M.R., LASHKARIPOUR G.R.. EVALUATION OF SLAKE-DURABILITY TESTS AND THE USAGE OF SLAKE-DURABILITY INDEX IN ESTIMATING SHEMSKAK’S ROCKS UCS. IRANIAN JOURNAL OF GEOLOGY[Internet]. 2010;4(13):13-26. Available from: https://sid.ir/paper/129293/en

IEEE: Copy

M. BASHIRGONBADI, A. OROMIEHEA, M.R. NIKUDEL, and G.R. LASHKARIPOUR, “EVALUATION OF SLAKE-DURABILITY TESTS AND THE USAGE OF SLAKE-DURABILITY INDEX IN ESTIMATING SHEMSKAK’S ROCKS UCS,” IRANIAN JOURNAL OF GEOLOGY, vol. 4, no. 13, pp. 13–26, 2010, [Online]. Available: https://sid.ir/paper/129293/en

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