Autoclave Aerated Concrete Block, Light weight Block, AAC Block, Cellular Concrete Block, Aerated Block,Optima Cube Inframaterials Private Limited, Cube Constructions Private Limited, Vadodara, Gujarat, India

Comparison With Bricks

No.	Parameter	AAC Block	Brick
1	Size (L x H x B)	60cm x 20cm x 10 - 30 cm	23cm x 7.5cm x 11.5cm
2	Precision in size	Variation 1.5 mm (+ /-)	Variation 5mm(+/-)
3	Compressive Strength	35-40 Kg/cm2 (As per IS.:21851)	25-30 Kg/cm2
4	Dry Density	550-650 kg/m3 (Oven dry)	1950 Kg/m3
5	Wet Density	App. 800 Kg./m3	App. 2400 Kg./m3
6	Fire Resistance	2 to 6 Hour depending on thickness	2 Hours
7	Sound Reduction index1 (dB)	45 for 200 mm thick wall	50 for 230 mm thick wall
8	Thermal Conductivity. (Kw-m/C)	0.16	0.81
9	Adaption to various surface finishes	All kind of Finish like in brick work is possible	Same
10	Mortar Consumption per M³ with 1:6	0.5 bag of Cement	1.35 bag of Cement
11	Construction Time per mason per	30 Sqm. with block only. More can be constructed if total system is used i.e. 50% time saving	20 sqm. with Conventional Brick
12	Chemical Composition	Fly ash used app. 60 % which reacts with binders (Lime & Cement) to form AAC which is an inert material	Soil is used which contains many inorganic Impurities like sulfates etc. which results in Efflorescence
13	Finishing	Can be directly incised, rasped to round edge, cut for arches, tapered to create profiles, sculptured etc.	Not Possible
14	Contribution to carpet area	3 - 5 %	No saving
15	Cost benefit Factor	Depending upon project design, savings upto 20% in structural cost due to reduction of dead load	No saving
16	Energy saving	Upto 30 % of Airconditioning Load. Both heating and cooling load will come down	No saving