High‑strength, light weight, uniform, heat resistant, termite and fire‑resistant fly ash bricks built for structural and aesthetic use in homes, boundary walls, and commercial construction.
High compressive strength
Light weight
Heat resistant
Low water absorption & smooth finish
Consistent sizing & eco‑friendly
NBRO approved
📦 Ideal for structural walls, load‑bearing applications, and residential or commercial projects.
Dimensions : 15.5 x 7.5 x 4 inches /390 x 190 x100mm
Weight : 12kg
Compressive Strength : 6N/mm2 to 9N/mm2
Thermal Conductivity : 0.4–0.5 W/mK
Primary Constituents: Fly Ash, Quarry Dust, Cement
Our fly ash bricks are made from a carefully balanced mix of cement, quarry dust, and fly ash — a by-product of coal combustion in power plants. By using this industrial waste material, we help reduce landfill waste and promote sustainable construction practices.
This environmentally friendly manufacturing process not only supports effective waste management but also lowers the carbon footprint of the building industry, offering a cleaner, greener alternative to traditional clay bricks.
Weight
Our Solid Fly Ash Building Block weigh approximately 4 kilograms less than a traditional cement block of the same size. This significant weight reduction translates directly into lower transportation costs, reducing fuel consumption. On-site, the lighter weight makes it easier and faster to handle, leading to quicker installation times, reduced labour fatigue, and energy savings in multi-storey construction.
High Compressive Strength
One of the key advantages of fly ash bricks is their superior compressive strength, making them highly durable and capable of withstanding substantial loads without cracking or crumbling.
Cost Effective
Fly ash bricks are more cost-effective than traditional clay bricks due to their lower energy and raw materials requirement. The uniform shape allows for precise construction, reducing the need for excessive mortar and plaster.
Excellent Thermal Insulation
These bricks offer superior thermal insulation, helping to regulate indoor temperatures. As a result, buildings constructed with fly ash bricks require less heating in winter and cooling in summer, leading to energy savings.
Low Water Absorption
With a low water absorption rate, fly ash bricks are highly resistant to water damage, efflorescence, and other moisture-related issues, enhancing their longevity.
Material
Thermal Conductivity (W/m·K)
Heat Insulation Performance
Notes
Material
Thermal Conductivity (W/m·K)
Heat Insulation Performance
Notes
Your Fly-Ash Brick
0.20
⭐ Excellent (very low)
Keeps interiors cooler and reduces heat transfer. Ideal for tropical climates.
Clay Brick (standard fired)
0.6 – 1.0
Moderate
Transfers 3–5× more heat than your brick. Less energy efficient.
Concrete Block
1.0 – 1.8
Poor
High conductivity means buildings heat up faster.
AAC (Autoclaved Aerated Concrete)
0.12 – 0.25
Excellent
Similar to your brick — both are lightweight and thermally efficient.
Stone / Granite
2.0 – 4.0
Very poor
Very dense; not suitable for heat insulation.
Timber
0.10 – 0.15
Very good
Good insulator but not as structurally strong.
Glass
0.80 – 1.00
Poor
High heat transfer; needs double glazing to improve efficiency.
Your brick’s thermal conductivity of 0.2 W/m·K means it:
Conducts 3–5× less heat than traditional clay bricks.
Provides excellent heat insulation, reducing cooling costs.
Makes buildings more energy efficient and comfortable, especially in hot climates like Sri Lanka or Australia.