Now days, when the cost of construction has increased due to high rate of cement, steel, bricks and all type of construction materials, one can reduce the cost upto a certain extent by using Fly Ash Bricks instead of traditional Clay Bricks. However there are several myths regarding the suitability and strength of Fly Ash Bricks, therefore in this article we have tried to give you all the information about the Fly Ash Bricks.
What is Fly Ash Brick? Fly ash brick is a brick made by using Fly ash of class ‘C’, Sand/Stone Dust, Lime, and Gypsum in appropriate proportions mixed in water. Ordinary Portland Cement can also be used in place of Lime and Gypsum. Owing to the high concentration of Calcium Oxide in class ‘C’ fly ash, the brick is described as “self-cementing”.
- Size : Machine Made Modular size 20 cm x 10 cm x 10 cm
- Weight : 2.5 Kg to 3 Kg.
- Compressive strength : 100 to 120 Kg/cm2
- Water absorption : 15 to 20%
It’s a proven fact that Fly ash bricks which is made with following the BIS standards in India are 100 % reliable and long lasting than normal red clay bricks of any other conventional building material.
Advantages of using Fly Ash Bricks:
- Fly ash bricks are light weight material compared to clay bricks, so it is suitable for multi storey buildings, less weight means less stress on building, hence safety assured.
- Fly ash bricks absorb less heat than normal bricks, therefore it keeps your building cool even in summer, hence most suitable for Indian conditions.
- Due to its uniform and even shape, less mortar is required in construction. Also plastering can be avoided if used for compound wall or godowns.
- Plaster of Paris can be applied directly without a backing coat of plaster
- The compressive strength of Fly ash bricks are high compared to normal bricks, Therefore, less wastage occur during transportation.
- Fly ash bricks are less porous, therefore they absorb very little water, whereas burnt clay bricks absorbs more water during construction. Thus Fly ash bricks save money on water during construction and even keep your building strong during rainy seasons.