Evaluate the brittleness factors for some rocks by ultrasonic measurements

Basalt is classified as a isotropic rock in according to its mechanical properties. But gypsum is considered isotropic transverse rock . coming the mechanical parameters values joins practice direction of parameters . By using a nondestructive method such as the ultrasonic test which depends on understanding the effectual of mechanical properties upon speed of ultrasonics inside rocks , one can indirectly predict the mentioned parameters Tests were completed within 35 gypsum and 11 basalt rocks specimens which collected by completions under the direction of General Organization for Land Development ( Directorate of Geological Investigation).