SPECIFICATION FOR BURNT CLAY HOLLOW BRICKS USED FOR WALLS AND PARTITIONS
Reference
IS 3952-1988 – Specification for burnt clay hollow bricks for walls and partitions.
General Quality
o Bricks shall be free from cracks and flaws and nodules of free lime.
o Bricks shall have smooth rectangular faces with sharp corners
o Bricks shall be of uniform in colour and texture.
o Bricks shall be free from excessive winding or bowing.
Dimensional Specification
| Length (L), mm | Width (W), mm | Height (H), mm |
| 190 | 90 | 90 |
| 290 | 90 | 90 |
| 290 | 140 | 90 |
Physical Requirements
| Compressive Strength | Minimum average compressive strength shall not be less than 3.5 N/mm2. When tested for any individual brick, shall not fall below the minimum average compressive strength by more than 20%. |
| Water Absorption | Shall not be more than 20% by weight |
| Efflorescence | Shall have a rating of efflorescence not more than ‘Slight’ |
Types of Hollow Bricks
| Types | Face Type |
| Type A | Bricks with both faces keyed for plastering or rendering |
| Type B | Bricks with both faces smooth |
| Type C | Bricks with one face keyed and one face smooth |
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Suryakanta
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3 Comments
Hello, I have a special question for you. I own a house in Quebec. We discovered that the basement floor was constructed as follows: a first layer of poured concrete, a row of “terra cotta hollows”, and a second and last layer of poured concrete. This method is not known in Quebec. On the other hand, by checking on the internet, I saw on your website a product that resembles the one we found the “hollow brick for walls and partitions”. Can someone give me more information about it as to why this material was incorporated into the floor in question. That would be very useful to me. Thank you for your help. I can send you a pic of that floor. JY
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