• Light-Weight: AAC density is about one-fifth of that of normal concrete blocks, making it easily handled.
• Thermal Comfort and energy saving: AAC’s excellent thermal insulation properties result in improved comfort level and saves heating and cooling costs.
• Good Workability: AAC blocks can be sawn, cut, drilled, carved and nailed properly.
• Impact Resistance: AAC blocks can handle impact loads very effectively.
• Cost Effective: AAC blocks are cost effective in construction because of its bigger size and lighter weight as compared to other bricks.
• Fire resistance: AAC blocks have fire resistance capacity for 2 to 6 hours depending upon thickness. • Sound Resistance: It provide better sound insulation as compared to other building materials.
• Durable: History of usage dated more than 50 years protecting building envelope under extreme weather condition.
• Dimensional accuracy: AAC blocks can be cut to the tighter dimensional tolerances as compared to other blocks.
• Saves up to 25 % foundation cost.
• Greater wall installation speed as compared to other bricks.
|Sr.No||Parameter||AAC Block||Clay Brick|
|1||Structural Cost||Steel Saving Up to 15%||No Saving|
|2.||Cement Mortar for Plaster & Masonry||Requires less due to flat, even surfaces & less number of joints||Requires more due to irregular surface and more number of joints.|
|3.||Breakage||Less than 5%||Less than 5% Average 10 to 12 %|
|4.||Construction speed||Speedy construction due to its big size, light weight& ease to cut in any size or shape||Comparatively slow|
|5.||Quality||Uniform & Consistent||Normally varies|
|6.||Fitting & Chasing||All kind of fitting and chasing possible||All kind of fitting and chasing possible|
|7.||Carpet Area||More due to less thickness of walling material||Comparatively low|
|8.||Availability||Anytime||Shortage in monsoon|
|9.||Energy Saving||Approx. 30% reduction in air-conditioned load||No such saving|
|10.||Chemical Composition||Sand/Flyash used around 60 - 70 % which reacts with Lime & Cement to form AAC||Soil is used which contains many inorganic impurities like sulphates etc. resulting in efflorescence|
1) Soil Consumption: No soil is used to produce the AAC blocks. It uses the Fly Ash as a raw material which is wastages of Thermal Power Plants. So there is no harm to the soil and no impact on soil pollution.
2) Fuel Consumption: One sqft of carpet area with AAC blocks will consume 1 kg of coal and One sqft of carpet area with clay bricks will consume 8 kg of coal. So it is more eco friendly than the clay bricks.
3) Consumption of cement mortar: AAC Uses 0.77 bags of cement / Cu.m as compared to 1.44 bags of cement/ Cu.m of clay bricks.
4) Energy Saving: Approximately 30% saving of energy for heating and cooling because of low thermal conductivity value.
5) Cost Benefits: Reduction in dead weight leading to savings in steel and concrete.