Are aac blocks strong?
AAC blocks have a higher compressive strength.
Red clay bricks are made from a combination of clay (alumina), sand, lime, iron oxide, and magnesia, and are widely available throughout the country. AAC blocks are made from a mixture of fly ash, cement, lime, gypsum, and aeration agents and need development and production from specialised factories.
While red clay bricks are widely available, they do not provide superior compressive strength in comparison to AAC blocks, which are crafted to become more resilient to compression load. Red bricks have a compressive strength of 2.5 to 3.5 N/mm2, whereas AAC blocks have a compressive strength of 3 to 4.5 N/mm2.
SR NO
PARAMETER
AAC BLOCKS
RED CLAY BRICKS
1
Size
600x200x100-300 mm
230x75x150 mm
2
Accuracy
Variation 1.5 mm (+/-)
Variation 5 mm (+/-)
3
Compressive
Strength
3-5 Mpa
1.5-2 Mpa
4
Mortar Consumption per cum with 1:6
0.5 Bag of cement
1.35 Bag of cement
5
Chemical Composition
Fly-ash is used approx. 60% which reacts with binders (lime and cement) to form AAC which is an inert material
Soil is used which
contains many inorganic impurities
like sulfates which result in efflorescence
6
CO2 Emission per
square foot
2.2 kg
17.6 kg
7
Dry Density
550-650 kg/m3 (Oven
Dry)
1900 kg/m3
8
Fire Resistance
Up to 7 hours
Up to 2 hours
9
Cost-Benefit Factor
Depending upon project design, savings
up to 20% in structural costs can
be achieved due to reduction of dead load
None
10
Energy Saving
Up to 30% savings can be achieved in heating and cooling costs due to excellent insulation
None
11
Plastering Material
Exceptional dimensional accuracy allows for a final 6 mm skim coat
Traditional 3-coat plaster is required
12
Breakages
3%
15%
13
Environmental
Impact
A green building product as there is no pollutant or discharge in the manufacturing
process
Erosion of fertile topsoil is a crime against nature
Visit us: AAC Block Manufacturer in Goa and Andhra Pradesh
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