Fly ash brick is a building material, especially masonry units that are utilized in the construction of buildings. They are supposed to be a part of good and affordable building materials.
The containing class C or class F fly ash and water. Fly ash brick is generally compressed at 28 MPa and cured for 24 hours in a 66°C steam bath, then stiffened with an air-entrainment agent, the bricks can last for more than 100 freeze-thaw cycles.
Owing to the huge concentration of calcium oxide in class C fly ash, the brick is interpreted as “self-cementing”. The manufacturing method of fly ash bricks saves energy, decreases mercury pollution in the environment, and often costs 20% less than conventional clay brick manufacturing. Fly ash brick considered good and inexpensive building materials including class C, fly ash, and water.
Fly ash brick is environmentally friendly and manufactured by hydraulic pressure machines. They are 28% lighter than ordinary clay bricks and have a compressive strength greater than 40Mpa than ordinary bricks. They are economical and eliminate the need for plaster, it can decrease high construction costs and soil erosion.