| Bricks are measured in three dimensions, and weighed on digital scales prior to testing. (Click any photo to enlarge) |
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| 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. |  |