Harmful Ingredients in Bricks:

1) Lime Slaking :

➤ Due to lime slaking volume of brick increases and due to that cracking and disintegration is occurs.

2) Iron Pyrites :

➤ Presence of the Iron pyrites leads to crystallization and disintegration of bricks during burning due to the oxidation of these pyrites.

3) Alkalies :

➤ Alkali act as a flux during the burning of bricks but if it is in excess, it causes the bricks to fuse with each other thereby resulting in its twisting and warping.

➤ Presence of Alkalies also leads to efflorescence and staining in bricks.

4) Pebbles or Stones :

➤ Presence of stones and pebbles brick earth leads to the formation of weak and porous bricks, load carrying capacity of which is comparatively reduced.

5) Organic and Vegetative Matter :

➤ Presence of organic and vegetative matter helps in the burning of bricks but if they are left unburnt, it results in the formation of gases during the decomposition, which when escapes through the body of the bricks leads to the development of numerous voids, which results in decreasing of load carrying capacity of bricks.

see more topic 👇

Size and Weight of Bricks.

composition of bricks.

harmful ingredients in bricks.

classification of bricks.

Brick Manufacturing.

Testing of Brick.

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