AAC Block Technical Specifications

Complete technical data, IS 2185 standards, and comprehensive comparisons with conventional building materials

Key Technical Specifications

Property Standard AAC High Density AAC Units
Density 550-650 700-800 kg/m³
Compressive Strength 3.5-4.5 5.0-6.0 N/mm² (MPa)
Flexural Strength 0.9-1.1 1.2-1.4 N/mm²
Fire Resistance 4+ Hours 4+ Hours Unlimited (non-combustible)
Thermal Conductivity 0.16-0.24 0.24-0.32 W/mK
Sound Absorption 40+ dB 38+ dB STC Rating
Water Absorption 15-20% 12-18% % by weight
Durability 60+ Years 60+ Years Tested lifespan

Standard Block Sizes

Standard Wall Block
600×200×100mm
Weight: 6.2 kg | Coverage: ~8.3 blocks/m²
Medium Thickness
600×200×150mm
Weight: 9.3 kg | Coverage: ~5.5 blocks/m²
Load-Bearing Block
600×200×200mm
Weight: 12.4 kg | Coverage: ~4.2 blocks/m²

Note: Custom sizes available on request. All blocks manufactured per IS 2185-1:2012 standards with ±2mm dimensional accuracy. Bulk orders may have extended customization options.

AAC Blocks vs Conventional Materials

Weight Advantage

AAC blocks are 50% lighter than conventional clay bricks, reducing structural loads and foundation costs significantly.

Clay Brick: 1800 kg/m³
AAC Block: 600 kg/m³

Fire Safety

AAC blocks are non-combustible with 4+ hours fire rating, providing superior fire protection compared to clay bricks.

Clay Brick: 1.5-2 hrs
AAC Block: 4+ hrs

Thermal Efficiency

Superior thermal insulation reduces energy consumption for heating/cooling by up to 30%.

Clay Brick: 0.9 W/mK
AAC Block: 0.20 W/mK

Sound Insulation

Excellent acoustic properties with 40+ dB sound reduction coefficient for noise control.

Ideal for hospitals, schools, offices, and residential areas near traffic.

Eco-Friendly

Made from industrial fly ash waste (55%), reducing environmental impact and CO₂ emissions.

Sustainable manufacturing with minimal waste and energy efficient production.

Construction Speed

30-40% faster construction with larger block sizes and thin-bed mortar application.

Reduces labor costs and project timeline significantly.

IS 2185 Certification Standards

IS 2185-1:2012 - AAC Blocks

All our AAC blocks strictly comply with Indian Standard IS 2185-1:2012, which covers specification, classification, and general requirements for AAC blocks. This standard ensures dimensional accuracy, strength properties, durability, and safety compliance.

Compressive Strength

Minimum 3.0 MPa with safety factor ensuring long-term durability

Water Absorption

Maximum 20% ensuring weather resistance and durability

Dimensional Tolerance

±2mm accuracy for perfect fit and reduced mortar usage

Density Variation

Maximum 8% ensuring consistent properties throughout

Ideal Applications

Residential Buildings

Apartments, villas, independent houses with superior comfort and energy savings

Commercial Complexes

Office buildings, malls, retail outlets with excellent acoustic properties

Healthcare Facilities

Hospitals, clinics with superior fire rating and sound insulation

Educational Institutions

Schools, colleges, laboratories with excellent thermal comfort

Industrial Structures

Factories, warehouses with fire resistance and structural durability

High-Rise Structures

Multi-storey buildings with reduced load and structural efficiency

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