The compressive strength of clay bricks varies considerably depending on the firing temperature. It can be safely said that the minimum compressive strength is around 15MPa and the maximum around 50MPa.
Do Bricks Need To Be WaterProofed
People as me Do Bricks Need To Be WaterProofed ? If it is Brick veneer the answer is normally no if it is structural brick the answer is yes and a good product for doing this is Surfapore R