Properties of bricks, Civil Engineering

Assignment Help:

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.


Related Discussions:- Properties of bricks

Castigliano theoremn, what is vertical deflection of a beam, a conservative...

what is vertical deflection of a beam, a conservative structure and of what use is castigliano theoremn

Define alkali aggregate reaction - chemical deterioration, Define Alkali Ag...

Define Alkali Aggregate Reaction - Chemical deterioration? Sometimes high alkali cement reacts with minerals in certain aggregates and forms expansive compounds resulting into

Key reasons for conducting pull-out tests, Question What are key reason...

Question What are key reasons for conducting pull-out tests for soil nails ? Answer There are largely four bases for this examination- (i) To verify and verify bo

True or false, an increase in consumer income will affect the supply of any...

an increase in consumer income will affect the supply of any given product

Unsymmetrical bending, An 8 kN.m moment is applied at the end of a block fi...

An 8 kN.m moment is applied at the end of a block fixed into the ground as illustrated in thefigure below. The moment vector (double arrow head representation) acts in line with th

Prestressed concrete structures, Distinguish between uniaxial biaxial and t...

Distinguish between uniaxial biaxial and triaxial prestressing

Solid block -calculating for design mix, Good evening sir, solid block''s d...

Good evening sir, solid block''s design mix calculated generally please explain and derive .

Explain the tertiary treatment for wastewater, Explain the Tertiary Treatme...

Explain the Tertiary Treatment for Wastewater Tertiary Treatment: in cases where secondary treatment is not adequate (particularly if the discharges are into a sensitive water

Tension members, Tension Members: You have learnt about the Standard s...

Tension Members: You have learnt about the Standard specification for structural steel and various types of structural steel rolled sections. Different types of loads, stresse

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd