PREDICTION OF ENGINEERING PROPERTIES OF BASALTIC ROCKS IN JORDAN

This study aims at investigating possible connections between point load index (Is50) and the uniaxial compressive strength (UCS) for a Basaltic rock derived from different regions in Jordan and examining potential relationships between Basalt physical properties and ultrasonic pulse value (UPV). A series of lab experiments including point load test, uniaxial compressive strength, Brazilian split test, ultrasonic pulse velocity, dry density, and porosity were performed on a Basaltic rock cores with dimension as per the ISRM standard. The obtained results indicated that the relationship between unconfined compressive strength and point load test of Basalt is restricted with the result of the previous studies and ranged between 20 to 24 times the point load index values. Results also revealed that a good relationship may be derived between Brazilian split test and unconfined compressive strength. Lastly, results indicate a good relationship between ultrasonic pulse values (UPV) attained with both porosity and dry density