aac-blocks-featured

Production

  • Autoclaved Aerated Concrete (AAC) blocks are made using Portland cement which is mixed with quartz (silica / PFA), water and an aeration agent and poured into a mould.
  • The reaction between aeration agent & concrete causes millions of microscopic bubbles to form, expanding the concrete. That gives the block its unique properties.
  • These blocks are then cut to size and formed by steam – curing in a pressurized chamber (autoclave). The result is a non organic, non toxic, airtight material that can be used for construction of walls.

Specifications

particulars units sizes
Size mm 625 x 240 x thickness
Thickness mm 75, 100, 125, 150, 200, 230 & 300
Compressive Strength N/mm2 3.5 - 4.0 (IS 2185)
Normal Dry Density Kg / m3 550 - 650
Sound Absorption dB Upto 42
Fire Resistance Hrs 4*
Thermal Conductivity 'K' W / m2k 0.16
Thermal Resistance K - m2 / W 0.46
Heat Transmission Coefficient 'u' W / m2k 2.17
Drying Shrinkage % 0.04% (length of the block)
*For 200mm thick wall