Primary Constituents: Fly Ash, Quarry Dust, Cement

Eco-Friendly Fly Ash Bricks

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.

🔍 Summary

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.