7+ Performed Tests On Bricks (2024)

In This Article We Learned Various Tests Performed On Bricks One By One

To know the quality of bricks following 7 tests can be performed. In these tests some are
performed in laboratory and the rest are on field.

  1. Compressive strength test
  2. Water Absorption test
  3. Efflorescence test
  4. Hardness test
  5. Size, Shape and Colour test
  6. Soundness test
  7. Structure test

Compressive Strength Test

This Test Done To Know The Compressive Strength Of Brick. It Also Called Crushing Strength Of Brick. Generally 5 Specimens Of Bricks Taken To Laboratory For Testing And Tested One By One. In This Test A Brick Specimen Is Put On Crushing Machine And Applied Pressure Till It Breaks. The Ultimate Pressure At Which Brick Crushed Taken Into Account. All Five Brick Specimens Tested One By One And Average Result Taken As Brick’s Compressive/Crushing Strength.

Water Absorption Test

In This Test Bricks Weighed In Dry Condition And Let Them Immersed In Fresh Water For 24 Hours. After 24 Hours Of Immersion Those Are Taken Out From Water And Wipe Out With Cloth. Then Brick Weighed In Wet Condition. The Difference Between Weights The Water Absorbed By Brick. The Percentage Of Water Absorption Then Calculated.The Less Water Absorbed By Brick The Greater Its Quality. Good Quality Brick-Doesn’t Absorb More Than 20% Water Of Its Own Weight.

Efflorescence Test

The Presence Of Alkalies In Bricks Is Harmful And They Form A Grey Or White Layer On Brick Surface By Absorbing Moisture. To Find Out The Presence Of Alkalis In Bricks This Test Performed. In This Test A Brick Immersed In Fresh Water For 24 Hours And Then It’s Taken Out From Water And Allowed To Dry In Shade. If The Whitish Layer Not Visible On Surface It Proofs That Absence Of Alkalis In Brick. If The Whitish Layer Visible About 10% Of Brick Surface Then The Presence Of Alkalis Is In Acceptable Range. And If That Is About 50% Of Surface Then It Is Moderate. If The Alkalies’ Presence Over 50% Then The Brick Severely Affected By Alkalies.

Hardness test

In This Test A Scratch Made On Brick Surface With A Hard Thing. If That Doesn’t Left Any Impression On Brick Then That Is Good Quality Brick.

Size, Shape And Colour Test

In This Test Randomly Collected 20 Bricks Staked Along Lengthwise, Width Wise And Height Wise And Then Those Measured To Know The Variation Of Sizes As Per Standard. Bricks Closely Viewed To Check If Its Edges Are Sharp And Straight And Uniform In Shape. A Good Quality Brick Should Have Bright And Uniform Colour Throughout.

Soundness test

In This Test Two Bricks Held By Both Hands And Struck With One Another. If The Bricks Give Clear Metallic Ringing Sound And Don’t Break Then Those Are Good Quality Bricks.

Structure test

In This Test A Brick Broken Or A Broken Brick Collected And Closely Observed. If There Are Any Flows, Cracks Or Holes Present On That Broken Face Then That Isn’t Good Quality Brick.

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