Babhaniya Overseas is a leading manufacturer and exporter of Autoclaved Aerated Concrete (AAC) Fly Ash Blocks. As the construction industry shifts towards sustainable and efficient materials, our AAC blocks offer the perfect alternative to traditional red clay bricks—providing superior insulation, strength, and cost-savings for large-scale infrastructure pr
We manufacture blocks in accordance with international standards
AAC Fly Ash Blocks - Technical Specifications
| Technical Property | Standard Value / Specification |
|---|---|
| Compressive Strength | 3.5 – 5.0 N/mm² (Conforms to IS:2185 Part III) |
| Oven-Dry Density | 550 – 650 kg/m³ |
| Thermal Conductivity (k) | 0.16 – 0.24 W/mK |
| Fire Resistance Rating | 2 to 6 Hours (Depending on wall thickness) |
| Sound Transmission Class (STC) | Up to 45 dB |
| Drying Shrinkage | 0.05% to 0.10% maximum |
| Color / Appearance | Greyish White / Uniform solid rectangular blocks |
| Standard Length | 600 mm |
| Standard Height | 200 mm / 250 mm |
| Available Thicknesses | 75 mm, 100 mm, 150 mm, 200 mm, 230 mm |
* Note: Custom sizes and bulk export compliance configurations (ASTM / EN standards) are available upon request.
Key Features & Benefits
Lightweight Advantage
These blocks are 3 to 4 times lighter than traditional bricks, significantly reducing the "dead load" of the building and saving on structural steel.
Thermal & Sound Insulation
Superior thermal efficiency keeps interiors cool in summer and warm in winter, reducing energy costs. Excellent sound absorption (up to 45 dB) makes them ideal for hotels, hospitals, and high-rises.
Fire & Moisture Resistance
High fire rating (up to 4 hours) and low water absorption ensure a safer and more durable structure.
Fast Construction
Large block sizes and lightweight nature allow for 3x faster masonry work compared to red bricks, saving labor costs and time.
Eco-Friendly
Made from industrial fly ash, reducing environmental waste and promoting "Green Building" certifications.
Ideal Applications
High-Rise Buildings
To reduce the total weight of the structure.
Commercial Hubs
For fire safety and soundproofing.
Industrial Units
Where thermal insulation is critical.
Residential Projects
For cost-effective and faster project completion.
Logistics & Export Details
We ensure that every shipment is secure and damage-proof for international transport. Our packing process prioritizes both safety and space optimization.
Export-Grade Packaging :
- Wooden Palletized Packing: The blocks are placed on sturdy wooden pallets to prevent breakage during loading and unloading.
- Edge Protectors: Heavy-duty guards are installed on the corners of the pallets.
- Stretch Wrapping: The entire pallet is wrapped with high-quality stretch film to provide protection against moisture and dust.
- Strapping: The blocks are secured to the pallet using high-tensile plastic or steel straps.
Get a Custom Quote Today
Looking for a reliable AAC Block supplier for your next international construction project? We offer customized shipping solutions and technical support.
FAQs
AAC Flyash Blocks ExpoterÂ
What are the standard sizes available for your AAC Fly Ash Blocks?
Our standard blocks come with a fixed Length of 600 mm and Height of 200 mm or 250 mm. We offer a versatile range of thicknesses to suit different architectural requirements: 75 mm, 100 mm, 150 mm, 200 mm, and 230 mm. Custom thicknesses can be manufactured for large-scale bulk orders.
What is the minimum order quantity (MOQ)?
Because these are commercial-grade industrial materials, our orders are typically optimized by volume to ensure cost-effective logistics. Our standard MOQ is one full truckload (FTL) for domestic supply or one 20-foot container for export markets.
How do AAC Fly Ash Blocks behave in fire conditions?
AAC is highly non-combustible and does not emit toxic gases. Depending on the thickness of the block wall (e.g., 200 mm), our blocks offer a fire resistance rating of up to 6 hours, providing superior structural protection compared to traditional building materials.
What kind of mortar should be used to join AAC Blocks?
For maximum structural bond and performance, we highly recommend using a Thin-Bed Joining Mortar instead of traditional thick cement-sand mortar. Thin-bed mortar requires a joint thickness of only 2-3 mm, which eliminates thermal bridging, minimizes material wastage, and speeds up installation.
Can we easily perform electrical chasing and cutting on these blocks?
Yes. One of the greatest operational advantages of AAC is its workability. They can be precisely cut, drilled, or routed using simple woodworking tools or hand saws. This makes cutting channels (chasing) for electrical conduits and plumbing lines incredibly clean and fast, reducing on-site labor time and breakage.
Do you handle international export shipments?
Yes, we are experienced merchant exporters. We ensure that our AAC Fly Ash Blocks meet international quality parameters (including ASTM and EN standards). Goods are securely packed on industrial pallets and containerized for safe transit through major ports like Mundra. We offer competitive pricing structures for international B2B buyers.
What is the compressive strength and density of these blocks?
Our blocks are engineered to provide an optimal balance of structural strength and lightweight
Handling:Compressive Strength: 3.5 to 5.0 N/mm^2 (fully compliant with IS:2185 Part III standards).
Oven-Dry Density: 550 to 650 kg/m^3, making them roughly one-third the weight of a standard red clay brick.Do these blocks provide thermal and sound insulation?
Absolutely. The cellular structure trapped inside the autoclaved concrete gives it a low thermal conductivity (0.16 to 0.24 W/mK), which blocks external heat and can lower indoor air-conditioning energy bills by up to 25-30%. Additionally, they offer an acoustic insulation rating of up to 45 dB, making them perfect for hotels, offices, and multi-family residential projects.
Is curing (tarai) required after constructing an AAC block wall?
Unlike conventional red bricks which require days of continuous watering, AAC blocks do not require extensive curing after laying. Only the joints require minimal hydration if you are using standard cement. If you are using standard premixed polymer-modified joining mortar, the need for water curing is virtually eliminated.
Why are these blocks called "Fly Ash" blocks, and are they eco-friendly?
Our blocks utilize up to 70% pulverized fly ash (a byproduct of thermal power plants) as a core raw material. By upcycling this industrial byproduct, our manufacturing process prevents it from ending up in landfills. Furthermore, using AAC avoids destroying fertile topsoil (which happens with red clay bricks), making it a green building material that helps projects earn LEED certification points.