According to IS 3495 (part – I), the water absorption for different types of bricks is –
| Class of bricks | Water absorption |
| Class -A or 1st – class | 20% |
| Class-B or 2nd – class | 22% |
| Class-C or 3rd- class | 23% |
| Common building bricks | 25% |
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.


HPCL Recruitment 2026 Out for 731 Posts,...
SSC JE Mains Exam Date 2026 Out, Check T...
MECON Recruitment 2026 Out, Apply Online...




