Advantages and Disadvantages of Hoffmann kiln

Advantages and Disadvantages of Hoffmann kiln

Hoffmann kilns is the most commonly used kiln in the production of bricks and some other ceramic products. It is patented by German Friedrich Hoffmann for brick making in the year 1858.

Hoffmann kiln is v…

Uses of Brick

Brick plays a very important role in the field of civil engineering construction. Bricks are used as an alternative to stones for construction purposes. Here some main uses of construction brick are given…

Charactristicks of Brick

It is always desirable to use the best quality brick in construction. Therefore, the Characteristics of a good brick must be investigated. Generally, good bricks possesses the following properties-

  • BricK…

lime pitting of brick

If calcium carbonate is present in brick raw material, quicklime will be produced in the kiln. These quick lime, with the help of water, will form hydrated lime and the process expands. Sufficiently large lime particles located near the surface will pop off a piece of brick which will generally create a circular pit. The process is known as the lime pitting of bricks.


Brick test details – Quality construction work

List of Brick Tests

  • Absorption test
  • Compressive Strength Test (Crushing Strength Test)
  • Efflorescence Test (Presence of Soluble Salts)
  • Hardness Test
  • Impact Test
  • Dimension Tolerance Test
  • Shape and Size
  • Colour Test
  • Soundness Test
  • Structure Test

Fly ash brick

Fly ash brick (FAB) is a building material, specifically masonry units, containing class C or class F fly ash and water. Compressed at 28 MPa (272 atm) and cured for 24 hours in a 66 °C steam bath, then toughened with an air-entrainment agent, the bricks last for more than 100 freeze-thaw cycles. Owing to the high concentration of calcium oxide in class C fly ash, the brick is described as “self-cementing”. The manufacturing method saves energy, reduces mercury pollution and costs 20% less than traditional clay brick manufacturing.