TYPES OF BRICKS USE AT SITE WORKS

TYPES OF BRICKS USE IN CONSTRUCTION WORK AT SITE:

There are different types of bricks used for various kinds of purposes. Bricks are the most basicand favored material in common construction throughout the world. The bricks can be categorized into headings and subheadings on their different basis.

CLASSIFICATION OF BRICKS:

Image Source

Bricks are to be categorize into many types which depends on their Making processes, Quality, the raw material is going to use and also their using purpose But mainly we can categorized the brick into two main types and then sub types.

1. Unburnt bricks
2. Burnt bricks

UNBURNT BRICKS:

These bricks are dried through sun light and also called Sun-dried Bricks. The sub-dried bricks has a very low strength as compared to Burnt bricks. Now in these days this type of bricks are not used in construction mainly due to their low strength but they can be used in construction as a temporary structures.

BURNT BRICKS:

These bricks are commonly use in these day’s. They are prepared and burnt in a kiln and having a high strength as compared to unburnt bricks.

Burnt Bricks are further classified into three types.

1. First Class Brick
2. Second Class Brick
3. Third Class Brick

FIRST CLASS BRICKS:

These bricks are 19 x 9 x 9 cm in size and made up of good earth, free from saline deposits. These bricks are free from flaws, cracks, chips, stones, etc. First class brick should produce ringing sound when two bricks are struck together.

Brick	Properties
1. Type	1. First Class Brick
2. Size	2. 19 x 9 x 9 cm
3. Crushing Strength	3. 105 kg/cm2
4. Edges	4. Sharp and square.
5. Color	5. Uniform red or brown.
6.Shape	6. Standard and uniform (rectangular)
7.Water Absorbing	7. 15%  to 20 % of its self-weight when submerged in water for 24 hours.
8.Surface	8. Smooth and straight
9. Use of this Brick	9. Superior work,1 class construction

SECOND CLASS BRICK:

These are also fully burnt and give a clear ringing sound when struck together. In second class bricks slightly irregularities in shape, size or color are acceptable.

Brick Feature	Properties
1. Type	1. Second Class Brick
2. Size	2. 19 x 9 x 9 cm
3. Crushing Strength	3. 70 kg/cm2
4. Edges	4. Uneven faces, may consist of hairline cracks.
5. Color	5. Uniform color.
6. Water Absorbing	6. 22% of its self-weight when submerged in water for 24 hours.
7. Crushing Strength	7. 70 kg/cm2
8. Shape	8. Slightly irregular as compare to 1 class
9. Use in	9.  Internal walls

THIRD CLASS BRICK:

These types of bricks are irregular in shape and dark in color which is due to over burning.

Brick Feature	Properties
1. Type	1. Third Class Brick
2.  Size	2. Non-uniform
3. Shape	3. Non-uniform
4. Crushing Strength	4. 30 kg/cm2
5. Color	5. Non-uniform and dark.
6. Edges	6. Distorted edges
7. Water Absorbing	7. 25% of its self-weight when submerged in water for 24 hours.
8. Surface	8. Irregular
9. Use	9.  Used in temporary structures.