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Comparison Table for AAC Blocks to Red Clay Bricks

ParametersBrik-O-Lite AAC BlocksBurnt Red Clay Bricks
Basic raw materials & other inputsCement IS-12269, IS-8112, Sand/PFA-IS-383,High Quality Lime IS-712,Gypsum,Water-IS-456, Fly Ash-IS-3812(PT-1) & aluminium as aerating compoundTop Soil & Energy
Dry Density kg/m3550 - 650 kg/m3(dry oven) IS-2185(PT-3)1900 kg/m3
Compressive Strength in kg/cm330-45 kg/cm3, IS-2185(PT-4)40-75-kg/cm3
AgingGains strength with ageNo gain in strength with age
Thermal Conductivity (W/m-k.)0.24 W/m.k.(for 551-650 kg/m3)0.81 W/m.K.
Sound InsulationSuperior than burnt clay & hollow concreteNormal
Ease of WorkingCan be cut, nailed & drilledNormal
Fire Resistance4 to 6 Hours (depending on thickness)2 Hours
Sound Reducing Index45 db for 200 mm thick wall50 db for 230 mm thick wall, for the frequency ranging from 200 to 2000 hz
Pest & Rodent ResistanceNo fungus & algae germination due to non organic propertiesAlgae Susceptible
ProcessCasting-rising-Precuring-IS-456, IS-2185(PT-4)Moulding heat treatment
Pre-cast Brick Size600X200X75 To 300mm-IS-2185(PT-3,4)230X100X70mm
Pre-cast ElementsAny size of elementsNot feasible
Water Absorption % by weightLess than 20% by volume-IS-2185(PT-3)20% by volume
Drying Shrinkage mm/meterShrinkage after maturing 0.011 (for 600 kg/m3) IS-2815(PT-3)No shrinkage
ProductivityOutput 100% more than brick workNormal
Eco FriendlinessPollution free, normal energy requirement, open process uses fly ash or sand limeCreates smoke, uses high energy, wastes agricultural land
Structural saving due to dead weight reduction55% reduction in weight of walls. Tremendous structural saving for high rise buildings in earthquake/poor soil areaNo additional saving
DeliveryPre-Cured and ready for delivery-IS-456Seasonal
AutomizationAutomated manufacturing process-accurate design mixManual
Labour involvement for 10x10 ft wall1 Labour2 Labours
Construction SpeedVery high due to bigger size, light weightComparatively lower
QualityUniform and finishedNormally varies

Savings Comparison Of Brik-O-Lite vs Red Clay Bricks

PARAMETERSBRIK-O-LITE AACCONVENTIONAL BRICKS
Savings in Steel15-20 % due to lower dead-weight/loadNo Saving
Savings in Cement10%-15%No Saving
Savings in Mortar70%-80% reduction in use of Mortar. Less joints results in lesser quantity of mortar for building.No Saving
Savings in Plaster60%-70% reduction in the cost of plastering. AAC blocks have uniforms shape and texture, which gives even surface to the walls.No Saving
Savings in Labor10%-15% saving in Labour costMore Labour required
Savings in Operational Cost25% saving in Operation costNo Saving
Savings in Construction TimeInstallation time 3 to 3.5 times faster. Speedy construction due to big sizeSlow construction due to small size
Savings in EnergyApprox 30% Air-condition load, both heating and cooling will come downNo Saving
Savings in Carpet AreaMore Carpet area is available in same built-up area due to less thickness of walling – 2%-3%Less carpet area available due to more thickness of walling