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Fly Ash Bricks

In May 2007, Henry Liu, a retired civil engineer, announced that he had invented a new brick composed of fly ash and water compressed at 4,000 psi (27,939 kPa) for two weeks. Owing to the high concentration of calcium oxide in fly ash, the brick is considered "self-cementing". The brick is toughened using an air entrainment agent, which traps microscopic bubbles inside the brick so that it resists penetration by water, allowing it to withstand up to 100 freeze-thaw cycles. Since the manufacturing method uses a waste by-product rather than clay, and solidification takes place under pressure rather than heat, it has several important environmental benefits. It saves energy, reduces mercury pollution, alleviates the need for landfill disposal of fly ash, and costs 20% less than traditional clay brick manufacture.


Low water absorption
Less consumption of mortar
Economical & eco-friendly
Low energy consumption
No emission of green house gases


230 x 110 x 75 mm


100 kgf/cm - 130 kgf/cm


Substitute Of Clay Bricks