AAC Blocks for Sustainable Construction

Building Strength. Driving Sustainability.

GrayGold AAC Blocks are designed for the future of construction — strong, lightweight, and eco-conscious. Trusted by builders, our AAC blocks deliver unmatched performance while supporting sustainable infrastructure goals.

About AAC Blocks

We specialize in manufacturing high-performance AAC blocks that combine strength, precision, and sustainability. With state-of-the-art technology and deep expertise in autoclaved aerated concrete, we help the construction industry build greener and smarter without compromising safety or durability.

Our products are precision-engineered to meet demanding industry standards, ensuring every project benefits from quality, efficiency, and reliability. Whether it’s residential, commercial, or large-scale infrastructure, GrayGold AAC blocks are the trusted choice for future-ready construction.

What are Autoclaved Aerated Concrete (AAC) Blocks?

Autoclaved Aerated Concrete (AAC) is a next-generation, lightweight building material engineered for superior performance. It is manufactured from a mix of fly ash, cement, lime, water, and an aerating agent. This mixture undergoes a high-pressure steam curing process in an autoclave, creating a physically and chemically stable product with millions of tiny, non-connected air pockets. AAC blocks are manufactured in compliance with IS -2185 (Part -3) standards, ensuring certified quality, strength, and durability for modern construction requirements.

AAC blocks undergo a high-pressure autoclaving process that gives them:

Essential Features of AAC Blocks

Lightweight yet Strong

Lowers structural load while ensuring durability.

Precision Engineered

Accurate dimensions for seamless, waste-free building.

Earthquake Resistant

Engineered to reduce damage during earthquakes.

Thermal Insulation & Sound Resistance

Keeps interiors comfortable and energy-efficient.

Technical Specification of AAC Block

PARAMETER VALUE
Density (Oven Dry) 550-650 kg/m³
Compressive Strength 4N/mm²
Modulus of Elasticity 2040 N/mm²
Coefficient of Thermal Expansion 8.1 x 10⁻⁶ K⁻¹
Water Absorption (at equilibrium) 8%
Thermal Conductivity (K value) 0.16 W/(m.K)
Drying Shrinkage 0.04%
Fire Resistance 4 Hrs. (for 150 mm wall)
Sound Transmission Class Rating 43db (for 100mm wall)
Strength - 4 ++ N/mm2

Industries We Serve

Our AAC blocks are the ideal solution for a wide range of construction projects, providing consistent performance and reliability.

Red Bricks vs. AAC Blocks

Why AAC Blocks Lead the Future of Construction

Feature Red Bricks AAC Blocks
Thermal InsulationLowExcellent
WeightHeavyLightweight
Compressive StrengthLowHigh
Fire ResistanceUp to 2 hoursUp to 4 hours
Construction SpeedSlowerFaster
Environmental ImpactHigh (uses topsoil, high energy)Low (uses fly ash, less energy)
Sound InsulationAverageExcellent
Water AbsorptionHigherLower
Pest ResistanceSusceptible to termitesResistant
Overall Cost-EffectivenessHigher long-term costs (energy, labor)Lower long-term costs

Committed to Quality
and Sustainability

Our approach is driven by a commitment to deliver long-term value through precision manufacturing & sustainable practices. We don’t just supply building materials—we partner in your construction success.

Engineering Excellence

Sustainability First

Technology-Driven

Consistent Quality

Ready to build Smarter, Greener and Faster?

Partner with GrayGold and leverage the power of advanced AAC blocks for your next project.

Key Benefits of AAC Blocks

  • Reduces Structural Costs
  • Enhances Energy Efficiency
  • Improves Fire Safety
  • Provides Acoustic Comfort
  • Supports Green Building Goals
  • Speeds Up Construction
  • Ensures Long-Term Durability
  • Precise dimensions for smooth assembly

Let's Connect with Us

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    Frequently Asked Questions

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