Predicting Strength Parameters of Igneous Rocks From Slake Durability Index

Abstract

The aim of this study is to evaluate and develop statistical models for predicting the strengthparameters (point load strength, uniaxial compressive strength and Brazilian tensile strength) ofigneous rocks, using slake durability index (SDI). In this study, the index, mechanical and slake durabilityindex parameters of the 23 rock samples collected from different locations of the Central Anatolia havebeen detected by testing. A very high exponential relation between the strength parameters and SDIwas found out. However, it has seen that the equations developed cannot estimate the strengthparameters when SDI values greater than 98%. The relationship between strength parameters and SDIwas reexamined in the case of SDI values being greater and less than 98%, and very high correlationswere developed for strength parameters. These developed empirical equations can be applicable forigneous rocks having similar geomechanical properties.