Percentage of various ingredient in a good brick earth with their function is as follow:
| S. no. | Raw Material | Function |
| 1. | Silica (50-60) % | Imparts strength, hardness and uniform shape and size. |
| 2. | Alumina (20-30) % | Imparts plasticity to brick. |
| 3. | Lime (<5%) | Help in fusion of materials and binding particles together. |
| 4. | Iron oxide (5-6%) | Imparts red color and improves impermeability and durability. |
| 5. | Magnesia (<1%) | Imparts yellow tint to bricks and decrease shrinkage. |
Boost your preparation with the all-new Concept Booster Series by Adda247 Engineering Jobs, this series aims to target all the important engineering exams such as SSC Je 2022, GATE 2022, ESE 2022, and many more. Please reach out to us with your feedback in the comment section.



CDAC Recruitment 2025 Out, Apply Online ...
NEEPCO Apprentice Recruitment 2025 Out, ...
Mahagenco Technician 3 Result 2025 Out, ...













