bricks

INTRODUCTIONINTRODUCTION

Bricks are mostly used in building constructions. Bricks are mostly used in building constructions. ((Walls, foundation, column, retaining wallsWalls, foundation, column, retaining walls))Bricks are made chiefly from non-organic Bricks are made chiefly from non-organic materialsmaterialsMain materials:Main materials:- - clayclay

- sand- sand - lime- lime - cement- cement

Methods of manufacturing bricks:Methods of manufacturing bricks:- Hand-made- Hand-made- Pressed - Pressed - Wire-cut - Wire-cut Standard size – 215mm (Standard size – 215mm (lengthlength) x 102.5mm ) x 102.5mm ((widthwidth) x 65mm () x 65mm (thicknessthickness))Well-made bricks are hard and durable. Well-made bricks are hard and durable.

INTRODUCTIONINTRODUCTION

TYPES OF BRICKSTYPES OF BRICKS

Three types of bricks:Three types of bricks:

Clay bricks:Clay bricks:

1) Common bricks1) Common bricks

2) Facing bricks2) Facing bricks

3) Engineering bricks3) Engineering bricks

4) Fire bricks4) Fire bricks

Silica bricks/ sand-lime bricks (calcium Silica bricks/ sand-lime bricks (calcium silicate)silicate)

Cement bricksCement bricks

Types of Bricks Uses of Bricks in Civil Engineering

A) Common bricks

-have a dull texture and

poor colour

- Used for internal and rear walls that need to be plastered

B) Facing bricks

-Pleasant looking texture

-Capable of withstanding

the effects of weather

-Used for constructions that do not need to be plastered because of pleasant appearance

C) Engineering bricks

-Very hard, dense and do not easily absorb water

-Mainly used for walls carrying exceptionally heavy loads. Examples : retaining walls , foundation

D) Fire bricks

-Able to resist high

temperature

-Mainly used for constructions that need to resist high temperatures like kiln or boiler

2. Sand-lime bricks/ silica brick (Calcium silicate)

-Materials

hydrated lime

Clean sand

ratio of 1:8

-As an alternative for replacing ‘Common Clay Bricks’

-for internal and rear walls

3. Cement bricks

-Materials

cement

clean sand

ratio of 1:8

-As an alternative for replacing ‘Common Clay Bricks’

-for internal and rear walls

Advantages and Advantages and disadvantages disadvantages

of Bricksof Bricks

Advantages Disadvantages

1. Easy to be used in building walls

2. Easily managed/ handled

3. Facing bricks can be made as decoration without plastering

4. Can be used as pier

5. Acid or alkaline resistance

1. Plastering work requires skilled workers

2. Low tensile-strength

CONCLUSIONBRICKSBRICKS

Common bricksCommon bricks

Cement Cement bricksbricks

Silica bricks/ Silica bricks/ sand-lime sand-lime

bricks bricks (calcium (calcium silicate)silicate)

Clay bricksClay bricks

Fire bricksFire bricks

Engineering bricksEngineering bricks

Facing bricksFacing bricks

QUIZ!!!QUIZ!!!

1.1. State 4 types of clay bricks:State 4 types of clay bricks:

(a) ……………………………(a) ……………………………

(b) ...........................................(b) ...........................................

(c) ……………………………(c) ……………………………