edge third class bricks3. The crushing strength should not be less than 7.0 N/mm 2. Uses: Second-class bricks are recommended for all important or unimportant hidden masonry works and centering of reinforced brick and reinforced cement concrete (RCC) structures. 3) Third Class Bricks are under burnt. They are soft and light-colored producing a dull sound when struck ... · 2. Crushing Strength or Compressive Strength Test on Brick. Bricks that are used for masonry construction are generally subjected to compressive loads thus it is necessary to determine the compressive strength of bricks. The compressive strength test is also known as the crushing strength test which is an important type of laboratory test conducted on bricks to …1 · The minimum crushing strength of brick should be 105 kg/cm2. The crushing strength of brick can be found out with the help of a crushing testing machine. The brick is fixed to the crushing testing machine and then crushing force is applied to the brick during the testing operation. Compressive Strength = Maximum Load at Failure(N/mm 2) / Area ...2 · The average crushing strength and tensile strength of hand moulded bricks are 60000 kN/m 2 and 2000 kN/m 2 respectively. The shearing strength of bricks is about one-tenth of the crushing strength. In practice however the bricks are not subjected to the tensile stresses. It may be noted that the strength of brickwork mainly depends on the type ...2 · Brick specimens are to be tested flatwise. The specimen is to be centered under the spherical upper bearing within 1/16 inch. Figure: Compressive Strength Test of Brick. The load should be applied up to one half of the expected maximum load,
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