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
abrasion test is conducted to find what

Q. Asphalt mix design - durability vs. stability? The main aim of asphalt mix design is to achieve a mix with economical blending of aggregates with asphalt to achieve the foll

write a short note on angular messurement using stations?

Evaluation of various reports regarding the effects of earthquake on spatial trusses History and static In this section we aim to provide a summary report of what was happ

Q. Explain the Maximum spacing of piles? One of the factors which affect the distribution of loads from the structures to each pile is assumption of flexibility of the pile ca

how to write the beam design using c -language


Q. Explain about Viscous flow loss? Absorptive material comprises interconnected voids and pores into which sound energy will propagate. When sound waves pass throughthe materi

what are defects in timber occur due to natural causes?