Fly ash brick (FAB) is a building material, specifically masonry units, containing class C or class F fly ash and water. Compressed at 28 MPa (280 atm; 4,100 psi) and cured for 24 hours in a 66 °C (151 °F) steam bath, then toughened with an air entrainment agent, the bricks can last for more than 100 freeze-thaw cycles.
Fly ash brick (FAB) is a building material, specifically masonry units, containing class C or class F fly ash and water. Compressed at 28 MPa (280 atm; 4,100 psi) and cured for 24 hours in a 66 °C (151 °F) steam bath, then toughened with an air entrainment agent, the bricks can last for more than 100 freeze-thaw cycles.
Source: Wikipedia "Fly ash brick" · CC BY-SA 4.0
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