*2.4.1 Compressive strength*

The compressive test of a brick is considered as an index of its durability and ability in a masonry wall to resist crushing loads [5, 7]. Even though most of the bricks are specified in terms of strength, it is important not to sacrifice on the properties of durability and bond for higher compressive strengths. Most of the bricks will a have strength generally ranging from 3.5 MPa to over 10 MPa. The dry compression test shall be carried out according to IS: 3495-Part [1]—1992 specification (or alternate as per the local relevant codes **Figure 1**). Five bricks per mix shall be taken for testing and their average value turns will be the "Dry Compressive Strength" of the brick. (Please refer to **Table 9** for the results of the compressive strength of the samples tested).

Compressive Strength = Failure Load/Area of Bed Face.
