Compressive strength of brick in N/mm2 & kg/cm2
In fact, Fly Ash Bricks are twice stronger than normal clay bricks, compressive strength of fly ash brick is 120kg/cm2. And for hand-made burnt bricks, while Crushing strength of heavy duty bricks machine pressed (also called engineering bricks) may have compressive strength as high as 450 kg/cm2, and even 500 kg/cm2.
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