About GEOLITE Light Weight Concrete Bricks ( AAC and ALC/NAAC )

We manufacture High quality AAC (Autoclaved Aerated Concrete) and ALC Aerated Light weight Concrete/NAAC (Non Autoclaved Aerated Concrete) Bricks

GEOLITE Lightweight Concrete Bricks are made with a proven technology & used successfully over 50 years in more than 100 different countries such as USA, UK, Sweden etc. Now manufactured in Kolhapur, Maharashtra.

GEOLITE Bricks are high in quality & low in price. With very less water absorption ratio. It shows great thermal & acoustic insulation property. Due to cellular structure and larger size, Handling and construction is done easily, rapidly with much superior finish.

Steel Requirement in building Structure is less due to lighter weight (Dead Weight) of wall construction,

savings up to 15% in the material

Sizes available of GEOLITE AAC and ALC/NAAC Bricks

Standard Sizes for GEOLITE Light Weight Bricks -

100x200x600 mm (Width x Hight x Length) = 83 blocks per cubic meter
150x200x600 mm (Width x Hight x Length) = 55 blocks per cubic meter
200x200x600 mm (Width x Hight x Length) = 41 blocks per cubic meter


 GEOLITE Block  =  Red clay bricks / Flyash Bricks
1 Pc of 150mm = 10.6 Qty - 9 x 4 x 3 ( W X H X L ) Inch


Advantages of GEOLITE Lightweight Concrete Bricks - AAC and ALC/NAAC


Lightweight -
• Steel & Cement requirement in structure is less due to less weight of wall construction results in savings
up to 15% of total project cost.
• Facilitates construction of unplanned walls anywhere & anytime.
• Three times less weight than clay or fly ash bricks and Blocks have an average compressive strength >3.0 N/mm2
Fire resistance -
• Thermal insulation performance is 5 times better than clay bricks & 10 times better than RCC
• With a just 100 mm thickness of wall 700kg/m3, GEOLITE Bricks offers fire endurance for heat transmission for Long hours without releasing any toxic fumes.
Weather & Earthquake resistance -
• Water absorption of GEOLITE bricks is relatively lower than any other materials. It is < 20 % for a density of 700 kg/m3.
• Closed cell structure of GEOLITE bricks reduces water absorption, So, No more Damp spots on the wall.
• Lower water absorption property of these blocks will help to reduce cracks in walls
• The lightness of the material increases resistance against earthquake
Sound Insulation -
• Due to porous structure, it gives very better sound insulation
• It is ideal in construction of schools, hospitals, amphitheaters. Etc.
Energy Savings –
• Less Electricity for AC/Heater. Due to Good thermal Insulation Property.
• Pollution free. Least energy requirement on production.

Environment Friendly -
• GEOLITE bricks are manufactured with fly ash - 100% recycled resource.
• Valuable Soil is not consumed.
• Very Less energy used for manufacturing.

Longer Life -
• Compressive strength increases with age of ALC/NAAC Blocks
• Typical Life is about approximately Double than Clay bricks
Money Savings -
• Economical in transportation, reduction in Manpower. Due to Less weight & Larger Size
• Significant reduction of overall weight results in savings on structural frames, footings or piles (Steel And Cement).
Such savings are often the multiple of the actual cost of the material itself.
• Decrease in number of joints and accurate dimensions of blocks, reduces cement mortar, plastering and Precious
time & cost of labor.
• The bricks can be sawed, drilled and shaped like wood using standard hand tools, regular screws and nails.
It is simpler than brick or concrete. So less wastage.
• By using 6 inch block in place of 9 inch brick, customer gets an additional 2% - 3% carpet area. The savings on
account of additional carpet area gained is more than cost of bricks
• Savings in construction cost can be as much as 13-15% when using GEOLITE Lightweight blocks, as
compared to clay bricks after considering resulting saving in steel, structure, cement, sand, gravel, etc


Difference Between AAC and ALC/NAAC Blocks
Block manufacturing process up to cutting is Similar in both AAC and ALC/NAAC. Only difference is curing type. Any ALC Plant can be upgraded to AAC in future by adding Autoclave and Boiler

What is AAC ( Autoclaved Aerated Concrete ) Block : This is Cured in Pressurized Steam ( Typically 12KG Pressure / 190Deg Celsius Temperature ). Due to Pressure and temperature, Block achieves it full strength in Approx 12 Hrs.
Here Strength of Blocks is fixed after curing, There's NO Change of strength in future.
Typically this method is used for higher capacity plants. Here Less Cementing material used but Steam cost is there so Production cost is almost similar to Water cured Blocks.
Plant cost is very High Compared to Water Curing plant - Example - 17M3/Day AAC Plant Machinery cost approx - 80 Lac

What is ALC ( Aerated Lightweight Concrete ) / NAAC ( Non AAC ) Block : This is cured with Water , Just like we cure normal concrete by sprinkling water 2 times a Day. Here Block gets full strength ( To Test ) after 28 Days. But we can ship and utilize product after 10 Days. ( Curing process consumes water inside block which we used while mixing ).
Strength of block gains Day by Day.

This method is used for small capacity plants up to 40M3/Day
Plant cost is very Less Compared to AAC plant - Example - 17M3/Day ALC Plant Machinery cost approx - 20 Lac
Technical Specifications    
Density 600-700 650-750
Compressive Strength 35-50kg/cm2 - After 3Days 30-40kg/cm2 - After 28Days
Change in strength in future No Change in strength Gain in strength Day by Day
Block Ready for Use Next Day after Manufactured After 10 Days after Manufactured
Water Absorption 20-24% 14-18%
Manufacturing Process    
Raw Material Water, Cement, Lime, Gypsum, Fly ash, Aluminum Powder, Coal/Wood ( For Steam ) Water, Cement, Fly ash, Aluminum Powder, Hardener
Curing Type Pressurize Steam Water Curing
Curing Period 12Hrs Min 7 Days
Machinery Required Mixer / Cutter / Molds / Boiler / Autoclave Mixer / Cutter / Molds
Production Capacity 14M3/Day to 500M3/Day 3.3M3/Day to 60M3/Day
Land Requirement Minimum 30000SQFT for Smallest plant Minimum 8000SQFT for Smallest Plant
Electric Load 50HP for Smallest Plant 5HP for Smallest Plant
Operator skill High Low
Maintenance Higher Lesser
Pollution while Production Yes No
Government Formalities, Permissions Strict Norms, IBR License Required, Yearly
Easy Permissions as theres No Pollution.
Basic Machine Cost without
Very High
( 16M3 Plant Basic Machinery cost approx 80Lac )
( 17M3 Plant Basic Machinery cost approx 20Lac )
Overall investment High Approx 25% compared to AAC
AAC Plants ALC / NAAC Plants Drymix Plants