Bricks

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INTRODUCTION
Bricks are mostly used in building constructions. (Walls, foundation, column, retaining walls) Bricks are made chiefly from non-organic materials Main materials: - clay - sand - lime - cement

INTRODUCTION
Methods of manufacturing bricks: - Hand-made - Pressed - Wire-cut Standard size – 215mm (length) x 102.5mm (width) x 65mm (thickness) Well-made bricks are hard and durable.

TYPES OF BRICKS
Three types of bricks: Clay bricks: 1) Common bricks 2) Facing bricks 3) Engineering bricks 4) Fire bricks Silica bricks/ sand-lime bricks (calcium silicate) Cement 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

Types of Bricks

Uses of Bricks in Civil Engineering

C) Engineering bricks -Very hard, dense and do not easily absorb water D) Fire bricks -Able to resist high temperature

-Mainly used for walls carrying exceptionally heavy loads. Examples : retaining walls , foundation -Mainly used for constructions that need to resist high temperatures like kiln or boiler

Types of Bricks

Uses of Bricks in Civil Engineering

2. Sand-lime bricks/ -As an alternative silica brick (Calcium for replacing silicate) ‘Common Clay Bricks’ -for internal and -Materials rear walls hydrated lime
Clean sand ratio of 1:8

Types of Bricks

Uses of Bricks in Civil Engineering

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 disadvantages of Bricks
Advantages
1. Easy to be used in 1. building walls 2. Easily managed/ handled 2. 3. Facing bricks can be made as decoration without plastering 4. Can be used as pier 5. Acid or alkaline resistance

Disadvantages
Plastering work requires skilled workers Low tensile-strength

CONCLUSION
BRICKS
Clay bricks

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

Common bricks Facing bricks

Engineering bricks

Fire bricks

QUIZ!!!
1. State 4 types of clay bricks: (a) …………………………… (b) ........................................... (c) …………………………… (d) ……………………………

QUIZ!!!
1. State 4 types of clay bricks: Common bricks (a) …………………………… (b) ........................................... (c) …………………………… (d) ……………………………

QUIZ!!!
1. State 4 types of clay bricks: Common bricks (a) …………………………… Facing bricks (b) ........................................... (c) …………………………… (d) ……………………………

QUIZ!!!
1. State 4 types of clay bricks: Common bricks (a) …………………………… Facing bricks (b) ........................................... Engineering bricks (c) …………………………… (d) ……………………………

QUIZ!!!
1. State 4 types of clay bricks: Common bricks (a) …………………………… Facing bricks (b) ........................................... Engineering bricks (c) …………………………… Fire bricks (d) ……………………………

QUIZ!!!
2. List 2 advantages and 2 disadvantages of bricks Advantages (a) (a) Disadvantages

(b)

(b)

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