AAC is alight weight Aerated Autoclaved Concrete Block. It is suitable for multistoried structure as it is lighter than standard size bricks and blocks. The use of AAC blocks in construction, reduce the dead load significantly and also ensure less usage of steel and concrete. This Product requires lesser number of joint, which results in saving jointing material, time and labor. AAC is manufactured through a reaction of aluminum on a proportionate blend of lime, cement and fly ash.During this process, the hydrogen gas that escapes creates millions of tiny air cells, rendering AAC block with a strong cellular structure. This is further strengthened by high pressure steam curing in Autoclaves. The Product thus formed is not only light weight but also has higher compressive strength.
Technical Specification
Particulars | AAC Block | Conventional Red Bricks |
---|---|---|
Strength | 30 - 40 Kg. / cm2 | 30 - 80 Kg. / cm2 |
Shape & Size | Uniform & Regular | Non Uniform & Regular |
Plaster Thickness | 10 - 12 MM | 15 - 20 MM |
Density | 600 - 750 Kg / cm3 | 1500 - 1900 Kg / cm3 |
Mortar Consumption | Less | High |
Mortar Joint Thickness | 8 - 10 MM | 15 - 18 MM |
Breakage / Wastage | Nil - 0.5 % | 8 - 10 % |
Comparison Between AAC Block & Red Brick
Parametar | AAC Block | Clay Brick |
---|---|---|
Size | 600 x 200 x 100 - 300 MM | 230 x 115 x 75 MM |
Variation in Diamension | +/-MM | /-MM |
Compressive Strength | 30 - 40 Kg / m3 | 25 - 30 Kg / cm2 |
Dry Density | 500 - 700 Kg / m3 | 1950 Kg / m3 |
Wet Density | 800 - 850 Kg / m3 ( Approx ) | 2400 Kg / m3 |
Fire Resistance | 4 - 6 Hour Depending o Thickness | 2 Hours |
Sound Reduction Index | 45 For 200 MM Thick | 50 For 230 MM Thick Wall |
( db ) | Wall | |
Energy | 32 % ( Approx ) Air Condition Load Both Heating and Cooling Will Come Down | No Saving |
Thermal Conductive | 0.16 - 0.17 ( Approx ) | 0.81 ( Approx ) |
Mortar Consumption | 0.018 per m3 with 1:6 / 0.5 bag of cement | 0.1 per m3 with 1:6 / 1.35 bag of cement |