Nila Brick

Joldagi Brick

Joldagi Brick

Regular price Rs. 8.30
Regular price Sale price Rs. 8.30
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🧱 Joldagi Brick – Description

Joldagi Brick (also spelled "Jol Dagi Brick" or "জলদাগী ইট" in Bengali) is a low-quality, under-burnt brick commonly found in parts of Bangladesh and Eastern India. The name “Joldagi” literally translates to “water-soaked” or “moist”, referring to its softness, high water absorption, and incomplete burning during manufacturing.


Joldagi Brick is NOT suitable for structural construction. It is considered one of the lowest grades of bricks.


General Description of Joldagi Brick:

Feature Description
Name Joldagi Brick (জলদাগী ইট)
Type Under-burnt, low-quality clay brick
Color Light red, yellowish, or pale – due to incomplete firing
Shape Irregular; often chipped, soft, and fragile
Strength Very low (compressive strength often < 3 N/mm²)
Water Absorption Very high (> 25%)
Weight Lighter than first-class bricks due to low density
Durability Poor; easily breaks or erodes in rain

🛠️ Uses of Joldagi Brick:

Use Case Suitability
Load-bearing walls ❌ Not suitable
Foundation work ❌ Not recommended
Temporary structures ✅ Okay if plastered and protected
Filling or soling ✅ Can be used for base fill layers
Low-cost rural structures ✅ With caution

⚠️ Drawbacks:

  • Soft texture: Can be crushed by hand

  • High porosity: Absorbs water easily, leading to damage

  • Not weather-resistant: Crumbles in rain

  • Short lifespan unless protected with plaster or rendering

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