What is Brick?

• Length of brick = 2 x width of brick + thickness of mortar
• Height of brick = width of a brick

Properties of Good Bricks

1. Good bricks are used for the construction of important structures. They should possess the following qualities
2. Bricks should be table-mounted, well-burnt in kilns, copper-colored, free from cracks and with sharp and square edges.
3. Bricks should be uniform in standard size and shape.
4. Bricks should give clear sound when struck with each other.
5. Bricks, when broken, should show a homogeneous and compact structure free from voids.
6. Brick should not absorb water more than 15 percent of the weight for first-class bricks and 15 to 20 percent by weight for second class bricks when soaked in water for 24 hrs.
7. Bricks should be sufficiently hard. Any impression should be left on the brick surface when scratched with a fingernail.
8. Bricks should not be broken into pieces when dropped flat at the hard ground height of one meter.
9. Bricks should have low thermal conductivity.
10. Bricks, when absorbed in water for 24 hours, should not show deposits of white salts when dried in the shade — dried in the shade.
11. The Compressive Strength of brick shall not be less than 55 kg/cm2

Sampling of Bricks

• Compressive Strength, Water Absorption Efflorescence. Etc.

Types of Tests On Bricks

• Compressive strength of brick
• Water Absorption test on brick
• Efflorescence test on bricks
• Dimension test on bricks

Test of Brick Compressive Strength (Compressive Strength of Brick)

Apparatus

Compression Testing Machine(CTM)

Scale

Wooden Plate

Prework Before Compressive Strength of Brick (Brick Compressive Strength)

Procedure Compressive Strength of Brick (Brick Compressive Strength)

• Note:- Plywood sheets plaster of Paris may be used to ensure a uniform surface for the application of load.

Calculation of Compressive Strength of Brick (Brick Compressive Strength)

• Compressive test of brick N/sq.mm. (Kgf/ sq.cm.)
  • = (Maximum load failure in Kgf (N) / Average area of the bed faced in Sq.cm ( Sq.mm)

Conclusion of  Compressive Strength of Brick Units

Absorption Test on Brick (Brick Water Absorption)

• Is Code 3495 part 2
• Aim: To determine water absorption of the specimen by 24 hours immersion in cold water.
• Scope: This procedure covers all relative activity for the project site.

Apparatus (Brick Water Absorption):

• Weighing Balance

• Weight machine for use for brick. Actual weight of the brick and after water absorption of brick weight calculation

• Dry oven use for Absorption test on brick.

• The scale used in this test for length, birth & depth of brick.

Sample Preparation Absorption Test on Brick (Brick Water Absorption)

• Dimensions shall be a measure to an accuracy of 1 mm of a test specimen
• A dry specimen in an oven at temperature 105-1150C till it attains substantially constant mass.
• the specimen to room cool temperature and obtain weight – M1

Procedure Absorption Test on Brick (Brick Water Absorption)

• Immerse complete dried specimen in clean water at temperature 27+/- 20
• Remove specimen after 24 hours and wipe out any traces of water with a damp cloth.
• Weigh the specimen within 3 minutes after removing from water - M2

Calculations & Records Absorption Test on Brick (Brick water absorption)

• = (M2-M1 /M1) x100.

Efflorescence Test On Bricks

• Is Code 3495 part 3

Apparatus for Efflorescence Test on Brick

• Dry Oven

• • • • • Dry oven use for Absorption test on brick.

Procedure Efflorescence Test On Bricks

Conclusion Efflorescence Test On Bricks

Dimension Test On Bricks

• Is Code 1077

• Measuring scale.

• The scale used in this test for length, birth & depth of brick.

Procedure Dimension Test On Bricks

• For modular size
  • length 3720 to 3880 mm (3800 ± 80 mm)
  • Width 1760 to 1840 mm (1840 ± 40 mm)
  • Height 1760 to I 840 mm (1840 ± 40 mm) ( For 90 mm high bricks)
    • 760 to 840 mm ( 800 ± 40mm) ( For 40 mm high bricks)
• For non-modular size
  • Length 4520 to 4680 mm ( 4600 ± 80 mm )
  • Width 2240 to 2160 tum (2200 ± 40 mm)
  • Height 1440 to 1360 mm ( 1400 ± 40 mm )
    • • ( For 70 mm high bricks )
    • 640 to 560 mm ( 600 ± 40 mm)
      • ( For 30 mm high bricks)

Test on Bricks PPT

Common Burnt Clay Bricks Detail / Strength

What Is Brick Strength?

Which IS Code for Brick Testing?

• IS: 1077 – 1992 (R2002)
• IS: 1200 (Part-III) – 1976
• IS: 2212 – 1991
• IS: 3495 (Part I to IV) 1992 ((R2002)
• IS: 6042 – 1969
• IS: 3590-1966
• IS: 3466 – 1988

Different Types of  Brick Test

• Absorption test.
• Crushing strength test.
• Hardness test.
• Shape and size.
• Color test.
• Soundness test.
• Structure of brick.
• Presence of soluble salts (Efflorescence Test)

Indian Standard Brick Size

Value of Water Absorption of Bricks

What is the Crushing Strength of a Brick?

What is the Importance of Frog in Bricks?

Water Absorption Test on Bricks

Standard Brick Size in India as Per Is Code

Bricks Compressive Strength

Compressive Strength of Brick

1. Compressive Strength/ crushing strength of first class brick is 105 kg/cm2.
2. Compressive Strength/crushing strength of 2nd class brick is 70 kg/cm2.
3. Compressive Strength/crushing strength of common building brick is 35 kg/cm2.
4. Compressive Strength/crushing strength of sun dried brick is 15 to 25 kg/cm2.

Astm Standards for Compressive Strength of Bricks

How to Conduct a Compressive Strength Test on Bricks?

• Compressive strength testing machine: This machine applies a compressive load to the brick until it fails.
• Water: For soaking the bricks before the test, if necessary.
• Vernier calipers: To measure the dimensions of the brick accurately.
• Testing accessories: These may include steel plates or plywood sheets to distribute the load evenly on the brick's surface.

Compressive Strength Testing Machine for Bricks

Factors Affecting Compressive Strength of Bricks

Importance of Measuring Brick Compressive Strength

Comprehensive Strength of Brick

Brick Strength Test

Water Absorption of Bricks Formula

What Is Compressive Strength of Brick?

How to Calculate Compressive Strength of Brick?

First Class Brick Compressive Strength

Crushing Strength of Brick

Standard Compressive Strength of Brick

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