Question

As per Indian standards for bricks, minimum acceptable compressive strength of any class of burnt clay bricks in dry state is
1. 10.0 MPa
2. 7.5 MPa
3. 5.0 MPa
4. 3.5 MPa

Answer 1

Correct Answer - Option 4 : 3.5 MPa

As per IS 1077: 1992 clause 4.1,

• The  acceptable minimum strength of burnt clay bricks is 3.5 MPa.
• The maximum strength of burnt clay brick goes upto 35 MPa