What is Difference Between AAC Blocks and Clay Bricks
Difference Between AAC Blocks Vs Red Bricks
A Comparative Analysis between Most demanding Brick Autoclaved aerated concrete Blocks ( AAC ) and Most common Brick Red Brick ( Natural Clay Bricks), Before choosing any bricks please read these Analysts then compare with each other and choose according to this chart.
Sr. No. |
Classification |
Red Bricks |
AAC BLOCKS |
1 | IDENTIFICATION BY COLOR | You can Identify by Red in colour. | AAC blocks colour is in Gray Color. |
2 | RAW MATERIALS FOR MAKING | The main raw material for making red bricks is Natural Soil. | Fly Ash is the main ingredient for making AAC blocks. |
3 | PRODUCT TYPE | Red Brick is not a Green Product, Because Red bricks are made from the natural top layer of soil, which is a big loss of our Environmental. It also reduces the top layer of fertile soil which helps in the growing of crops. | AAC Blocks is a green product Because AAC blocks are made from fly ash which is a waste product from the thermal power plant and it’s non-toxic material which is not harmful to the natural Environmental. We can recycle the waste product again and again. |
4 | EARTHQUAKE RESISTANCE | Red Brick increases the dead load of the main structure. And it’s less stable as compared to AAC Blocks during the earthquake. | AAC Blocks reduce the dead load of the main structure. And it’s more stable as compared to Red Bricks during earthquake time. |
5 | FIRE RESISTANCE | Red Bricks is a less Fire resistance as per PCA (Portland Cement Association) | AAC Blocks is more fire resistant as compared to Red bricks as per PCA (Portland Cement Association) Experimental. |
6 | WATER ABSORPTION | Red Bricks is Absorb more water, but not more than 20 % if the brick quality is not poor. | AAC Blocks is Absorb less water as compared to Red Bricks, It varies Between 5-10 %, But Not more than 10% by it’s own weight. |
7 | SOUND INSULATION | Red Bricks not have any properties for sound Insulation. By Technically you can say 50-60db for 230mm thick wall. | AAC Blocks have sound insulation properties. It acts as a Soundproof barrier. Technically we saY 40-45db for 200mm thick wall. |
8 | MOISTURE RESISTANCE | The moisture resistance of Red brick is less as compared to AAC Blocks. | AAC Blocks Moisture Resistance is better than Red Bricks. |
9 | Thermal Conductivity | K value = 0.16 W/mk | K value = 0.81 W/mk |
10 | DENSITY | Red Bricks Density is 1600-1922 kg/Cum, It’s Depends upon the Quality of the bricks. | AAC blocks Density is varies between 450 – 950 kg/ Cum. |
11 | COMPRESSIVE STRENGTH | Red Brick Compressive Strength is 2.5 – 3 N/mm2 | ACC Blocks Compressive Strength is 3 – 5 N/mm2 (IS 2185, Part-3) |
12 | ECONOMICAL | Using Red Bricks at the site it’s costly as compared to AAC blocks | AAC Block at the construction site is cheaper. |
13 | SPEED OF CONSTRUCTION | Comparatively lower as compared to AAC Blocks wall. Due to lots of joints, Small size, improper size and shape. | Very high due to bigger size, lightweight, which results in faster construction, saving on labour and jointing mortar due to elimination of Vertical Joints. |
14 | MORTAR CONSUMPTION | Red Brick Mortar Consumption per Cum with 1:6 Ratio, we need Approx 1.4 Bags of cement. | Mortar Consumption per Cum with 1:6 Ratio, we need Approx 0.5 Bags of cement. |
15 | QUALITY & DURABILITY | Normally varies | Uniform and Finished product. |
16 | WATER USAGE DURING CONSTRUCTION | High, Need curing before using this Red Bricks | Low, needs only surface wetting before using these AAC Blocks. |
17 | WASTAGE DUE TO USING | Approximate 8-10%. | Maximum waste during construction is 1-5%. |
18 | PRECISION IN SIZE | 5 – 10 mm ± Variation in size and shape. | 1.5-2 mm ± Variation in size and shape. |
19 | SIZE | Generally 190 mm X 90 mm X 90 mm | 625/600 mm X 240/200 mm X 75-300 mm |
20 | LABOUR OUTPUT | More due to small size, shape, lots of joints | Very less as compared to Red bricks. |
Now Don’t be confused when choosing good bricks, But my opinion is to go for AAC ( Autoclaved aerated concrete )Blocks.
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Interesting comparison lots of information .Thanks for sharing