The study of geotechnical properties of Aghajari sandstones in the eastern and southeastern Ahwaz city

Authors

1 Prof. in Engineering geology, Bu-Ali Sina University, Geology Department, Hamedan

2 Associate Prof. in Sedimentology, Bu-Ali Sina University, Geology Department, Hamedan

3 PhD student in Engineering geology, Bu-Ali Sina University, Geology Department, Hamedan

4 Postgraduate student in Engineering geology, Bu-Ali Sina University, Geology Department, Hamedan

Abstract

A major part of eastern and southeastern Ahwaz city consists of Aghajari sandstone outcrops. These rocks are one of the problematic rocks which are used extensively as aggregate(s). In this study, the grey sandstones from five sites in the eastern and southeastern Ahwaz were sampled in order to assess geotechnical properties and behavior of them. Their petrographical characteristics, physical and index properties as well as mechanical properties were determined. Samples were tested using Schmidth hammer hardness, slake durability, aggregate impact value­(AIV), point load, uniaxial compressive strength, Brazilian tensile strength, and wave velocity tests. The study revealed that the discrepancy in petrographical, physical, and index features of the sandstones caused to a marked difference in their mechanical properties. Using simple regression analyses and SPSS 19 software, the relations among geotechnical properties were examined. These equations have been as linear, logarithmic, and exponential functions. Also, for 95% confidence level, t- and F-tests confirmed the significance and validity of the suggested equations. In order to lessen the time and cost of projects, therefore, these suggested equations can be applied in estimating of geotechnical properties of the rocks.
 
 

Keywords

References

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