Brick testing photos
Bricks are measured in three dimensions, and weighed on digital scales prior to testing.

(Click any photo to enlarge)
CSIRO test unit. Bricks are tested for one hour in accordance with CSIRO bulletin 5.
Test pattern on unstabilised pressed earth brick after one hour, with the brick meeting all requirements.
Bricks of different material are tested. This one easily meets the test criteria.
Swinburne accelerated erosion test on NSW sourced material. This test indicates that the material is unsuitable, as it has insufficient non-dispersive clays.