What are the advantages and disadvantages of clay bricks?

 the advantages of clay bricks  
1. Clay bricks are made from local materials, are cheap, durable, and have the advantages of fire resistance, heat insulation, sound insulation, and moisture absorption. They are widely used in civil engineering. Waste broken bricks can also be used as aggregates for concrete.
 
2. Waste and broken bricks can also be used as aggregate of concrete.
 
3. Fly ash bricks are made of fly ash as the main raw material, mixed with coal gangue powder or clay and other cementing materials, and are compounded, shaped, dried and roasted to make full use of industrial waste residues and save fuel.
  Disadvantages of clay bricks
 
Self-importance
 
The weight of clay bricks is relatively larger than the dead weight of other wall masonry materials, which makes the structure need to bear a larger dead weight, and the construction cost increases.
 
2. Poor sound insulation
 
The sound is transmitted to the clay bricks. Due to its small porosity, the sound is not isolated, and the decibel of the sound is reduced little, while other masonry materials, such as now using more radon aerated blocks, have a larger void ratio and sound insulation obvious.
 
3. Large environmental damage
 
Since clay bricks are mainly made by sintering excavated soil, soil damage and vegetation damage, etc., cause soil erosion and severe damage to the environment. Therefore, the country is gradually stopping the use of clay bricks in engineering.