... tensile test to perform, is the Brazilian test. At an early stage it was seen that the water weakening effect also affects the tensile strength as obtained in Brazilian tests. But the use of the Bra- zilian test raised the question of how this test corre- lates with the mechanical parameters obtained...

... of diametral loading tests of discs of rocks (Brazilian tests). Discs of four different types of clearly bedded sandstones and one shale were tested under diametral loading in the laboratory. The rock elastic properties were determined by measuring strains using 45° strain rosettes glued at the center...