AAC is an acronym for Autoclaved Aerated Concrete(AAC)Block. It is the new age, smart & green building materials used in India. This has helped us emerge as the most viable substitute of the conventional Red Clay Bricks used in building walls in residential, commercial and institutional construction activities.
AAC Block is made from 60-65% FlyAsh (byweight), OPC cement, Quicklime, Aluminum powder and Gypsum. They are extremely strong and durable despite their light weight. AAC's solidity comes from the calcium silicate and from the process of curing in a pressurized steam chamber called an Autoclave.
Features & Benefits of AAC
Grade l, ISI approved high pressure steam curing autoclaving process gives AAC blocks unmatchable strength to weight ratio higher than even M150 concrete.
Time consumed in building walls decreases due to light weight of the product and its size advantage over conventional clay bricks. This decreases lead time as well as installation time.
There is no need to water AAC Blocks for curing. Only the mortar joints need to be cured with water in case of a conventional mortar mix; if Ecorex block jointing mortar is used then absolutely no water is required.
AAC material is completely inorganic and not combustible. AAC Blocks are suitable for use in areas where fire safety is recommended as these blocks are fire resistant for about 2-6 hours depending on thickness of the wall.
The manufacturing process gives the blocks considerable strength, this along with their lightweight impart steadiness to a building, making it earthquake resistant.
Thermal insulation is one of the greatest benefits of using AAC Blocks, as AAC walls help maintain distinct internal and external temperatures, saving energy cost.
With solid wall construction and finishes, there are fewer if any, cavities for insects & rodents to dwell in.
With a sound transmission class rating of 44, it can be used as a sound barrier 8" wall along busy roads.
Easy Application - Workability
Being light in weight and larger in size, AAC Blocks are easy to apply and facilitate the efficiency of the mason, particularly in high-rise work.
|Length (L)||600 / 625 mm||24" / 25"|
|Height (H)||200 / 240 mm||8" / 9.6"|
|Width (W)||75 / 100 / 125 / 150 / 200 / 225 / 250 mm||3" / 4" / 5" / 6" / 8" / 9" / 10"|
|Tolerance||± 1 %|
|Ecorex AAC Blocks Coverage|
|S.No.||Size (mm)||Quantity of Blocks||Cubic Meters Required|
|L W H||100 Sq. Mtr.||100 Sq. Ft.||1 CBM||100 Sq. Mtr.||100 Sq. Ft.|
|1||600 x 200 x 75||833.33||77.51||111.11||7.50||0.70|
|2||600 x 200 x 100||833.33||77.51||83.33||10.00||0.93|
|3||600 x 200 x 125||833.33||77.51||66.66||12.50||1.16|
|4||600 x 200 x 150||833.33||77.51||55.55||15.00||1.40|
|5||600 x 200 x 150||833.33||77.51||41.66||20.00||1.86|
|6||600 x 200 x 150||833.33||77.51||37.03||22.50||2.09|
|7||600 x 200 x 150||833.33||77.51||33.33||25.00||2.33|
|Ecorex AAC Block - Technical Datasheet|
|S.No.||Particulars||Units||Values||Requirements as per IS – 2185 Part - 3|
|1||Compressive Strength||N/mm2||>4.0||>4.0 (Density range 551 - 650 Grade - 1)|
|2||Oven Dry Density||Kg/m3||560-640||551-650|
|3||Fire Rating||Hrs.||8.00 (for 200 mm wall)||6 Hrs is desirable|
|4||Thermal Conductivity (K Value)||W/mK||0.16 - 0.21||0.24 Max|
|5||Sound Reduction||45db for 200 mm blocks without plastering||NA|
|6||Modulus of Elastic||Mpa||2040||NA|
|7||Thermal Resistance (R Value)||m2K/W||0.95 (200 mm width) @ 0.21 W/mK||Max Value is desirable|
|8||Thermal Conductance (U Value)||W/m2K||1.05 (200 mm width) @ 0.21 W/mK||Minimum Value is desirable|
|12||Drying Shrinkage (Maximum)||%||0.04||0.05 for Gr-1 Maximum|
|9||Sound Transmission Class Rating||Db||44||NA|
|Relevant Standard Codes for AAC Indian Standards|
|IS Code Number||Description|
|IS-2185part-3-1984 (reaffirmed 2005)||Specification of concrete masonry units, autoclaved cellular(aerated)concrete blocks.|
|IS-6041-1985 (reaffirmed 2005)||Code of practice for construction of cellular concrete block masonry.|
|IS-6441part-I, 1972 (reaffirmed 2001)||Methods of test for autoclaved cellular concrete products. Determination of unit weight for bulk density and moisture content.|
|IS-6441part-2,1972 (reaffirmed 2001)||Methods of test for autoclaved cellular concrete products. Determination of drying shrinkage.|
|IS-6441part-5,1972 (reaffirmed 2001)||Methods of test for autoclaved cellular concrete products. Determination of compressive strength.|
|IS-8348,1980 (reaffirmed 2005)||Method for the determination of thermal conductivity of thermal insulating materials(two slab guarded hot plate method).|
Note: The values obtained are from our laboratory testing conditions. Tests on site conditions may show a slight variation due to methods of testing/applications.