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
please discuss about trenches

Q. Granite Tiles for construction material? At every important station for public urinals granite may be used as wall cladding drain and foot rest material. The water sinks at

what is a balancing depth

How to calculate point of contraflexion on an overhanging beam with udl

Question What is key role of drilling fluid in rotary drilling in site search? Answer Drill fluid in rotating serves two main reasons. (i) Facilitate rotation of

EXPLAIN SITUATION OF THE PORTAL FRAME CAN CAUSE SWAY WITH THE AID OF A DIGRAM

Q. Write short notes on Abrasion Test? The abrasion test for ballast shall be carried out using Los-Angeles machine.The abrasive charge shall consist of 12 nos. cast iron or s

Explain the concept of average velocity


Q. What are the causes of settlement? The various causes of settlement are: 1) increasing load on the surrounding soil deposit, 2) excavation, 3) lowering of water tab