Compression tests A rammed specimen of tempered molding sand is produced that is 2 inches in diameter and 2 inches in height. The rammed sample is then subjected to a load which is gradually increased until the sample breaks. The point where the sample breaks is taken as the compression strength.
Shear tests The compressive loading system is modified to provide offset loading of the specimen. Under most conditions the results of shear tests have been shown to be closely related to those of compression tests, although the latter property increases proportionately more at high ramming densities.
The tensile test A special waisted specimen is loaded in tension through a pair of grips.
The transverse test A plain rectangular specimen is supported on knife edges at the ends and centrally loaded to fracture.