Properties of bricks, Civil Engineering

Properties of Bricks

The required properties of good bricks are following:

A.   Color: Color should be bright and uniform.

B.   Shape: Bricks should have plane faces. They should have true and sharp right angled corners.

C.   Size: Bricks should have standard sizes as prescribed by codes.

D.   Texture: They should possess dense, fine and uniform texture. They should not possess cavities, fissures, loose grit and unburnt lime.

E.   Soundness: When struck with hammer or another brick, it should generate metallic sound.

F.    Hardness: Finger scratching should not produce any notion on the brick.

G.   Strength: Crushing strength of brick will not be less than from3.5 N/mm2. A field test for strength is that while dropped from a height of range 0.9 m to 1.0 mm on a hard ground, the brick will not break into pieces.

H.   Water Absorption: In water after immersing the brick for 24 hours, water absorption might not be more than 20 %by weight. For class-I works this restrict is 15 %.

I.      Efflorescence: Bricks should not indicate white patches when soaked in water for 24 hours and then permitted to dry in shade. White patches are due to the existence of sulphate , magnesium , calcium and potassium. They keep the masonry permanently in wet and damp conditions.

J.    Thermal Conductivity: Bricks should have low thermal conductivity, so that buildings construct with them are cool in summer and warm in winter.

K.   Sound Insulation: Heavier bricks are poor insulators of sound whenever light weight and hollow bricks provide good sound insulation.

L.    Fire Resistance: Fire resistance of bricks is generally good. In fact bricks are utilized to encase steel columns to protect them from fire.

Posted Date: 10/16/2012 2:32:14 AM | Location : United States







Related Discussions:- Properties of bricks, Assignment Help, Ask Question on Properties of bricks, Get Answer, Expert's Help, Properties of bricks Discussions

Write discussion on Properties of bricks
Your posts are moderated
Related Questions
Define the Pump and Motor Efficiencies Equations account for the loss of power, primarily due to mechanical friction as a result of rotating components in the pump and motor.

EXPLAIN THE PROCEDURE FOR PREPARATION OF DRAWING USING AUTOCAD FOR RAPID SAND FILTER

Question For fixing of silt curtains, what is the reason that it does not desirable to design the curtain to touch the seabed ? Answer Silt finished are resistant ve

A contractor will place 90-cubic yards of concrete for a housekeeping pad on the rooftop of a 36-ft tall building. Site conditions dictate that the safest and best method of placem

which kind of pile can increase the bearing capacity, if the water level high in sang soil surface?

what are the cement testing?

Determine about the Hard-drawn steel wires Hard-drawn steel wires which are indented or crimped are preferred for pre-tensioned members as their bond characteristics are superi

#questionwhat is the shear force and bending moment..

Q. Explain Forty-five degree spread rule for driven piles ? For driven piles the length of piles driven into the ground is generally based on dynamic driving formula such as Hi

what classes do you have to take and what are some school options?