To determine the splitting strength of clay bonded molding sands in green or dry conditions, two specially designed circular clamps are attached to the Electronic Universal Sand Strength Machine (Model 42104).  This test is considered an indirect measurement of molding sand’s tensile strength properties.

In this test a standard cylindrical sand specimen is squeezed between two specially designed compression clamps. As these clamps squeeze the sand specimen, a split is formed that runs parallel to the axis of the specimen.
The values of splitting strength tests have been found to have very low dispersion.  The splitting test is easy to execute and the test utilizes the same type of sand specimen used in the standard green compression test.
It has been found that there is a close correlation between splitting strength and tensile strength in clay bonded molding sand. Since the tensile strength test is difficult and delicate, it is preferable to determine tensile strength as a function of splitting strength.

Utilized With: Electronic Universal Sand Strength Machine (Model 42104)