Advantages of Fly Ash

• Flyash bricks are light weight material compared to clay bricks, so it is suitable for multi storey building, Less weight means Less stress on building , safety assured.
• Low absorption of heat, FAB (fly ash bricks) absorbs less heat than normal bricks, it keeps your building cool even in summer, hence most suitable for Indian conditions.
• Thermal conductivity is 0.90-1.05 W/m2 ºC (20-30% less than those of concrete blocks). These bricks do not absorb heat; they reflect heat and gives maximum light reflection without glare.
• Less mortar required in construction and saves 20% morar, because all bricks are machine made and even in shape.
• High compressive strength compared to normal bricks which is [70-150kg/cm2].
• Less porous, absorbs very little water, whereas burnt clay bricks absorbs more water during construction. Saves money on water and 20% water usage during construction and even keeps your building strong during rainy seasons.
• Fly ash by mixing efficiently with the concrete mix can replace Portland cement that in turn can aid in making big savings in concrete material prices.
• It is an environmentally-friendly solution.
• It improves the strength over time and offering greater strength to the building.
• Increased density and also the long-term strengthening action of flash that ties up with free lime and thus, results in lower bleed channels and also decreases the permeability.
• The reduced permeability of concrete by using fly ash, also aids to keep aggressive composites on the surface where the damaging action is reduced. It is also highly resistant to attack by mild acid, water and sulfate.
• It effectively combines with alkalis from cement, which thereby prevents the destructive expansion.
• It is also helpful in reducing the heat of hydration. The pozzolanic reaction in between lime and fly ash will significantly generate less heat and thus, prevents thermal cracking.
• It chemically and effectively binds salts and free lime, which can create efflorescence. The lower permeability of fly ash concrete can efficiently reduce the effects of efflorescence.
• The cost of these brick will come down significantly if Ash producers like power plants start making them with automated systems ensuring highest quality and consistency and gaining from economies of scale.