A2/A3- Bricks

Question 1

What are the 3 types of bricks?
1.
2.
3.

Answer 1

1. Facing bricks.
2. Class A & B Engineering bricks.
3. Common bricks.

Question 2

What is the main function of facing bricks?

Answer 2

External walls.

Question 3

Why are facing bricks used for external walls?

1. Facing bricks have _____________ properties because they are manufactured in _____________________________.
2. Facing bricks have __________________ properties to prevent ________________________ inside the wall.

Answer 3

aesthetic
diverse colours and shapes

water-resistant
water penetration

Question 4

What are 2 advantages of class A & B engineering bricks?
1.
2.

Answer 4

1. High compressive strength.
2. High durability.

Question 5

Class B has a _______________________ than class A.

Answer 5

lower compressive strength

Question 6

What is the main function of class A & B engineering bricks?

Answer 6

Underground works.

Question 7

Give 2 reasons why Class A engineering bricks are suitable for the pier of a new bridge?
1. _________________________, so the bridge will not deform under loading.
2. Resistant to _______________, so the bridge is unlikely to be __________________________.

Answer 7

High compressive strength

frost attack
damaged during the winter

Question 8

What are 2 disadvantages of common bricks?
1.
2.

Answer 8

1. Low compressive strength.
2. Low consistency.

Question 9

What is the main function of common bricks?

Answer 9

Filling internal walls.

Question 10

Process to make bricks:
1. Clay is _____________.
2. Clay is processed on a ________________.
3. Clay is ______________ and ________ into bricks.
4. Bricks are _______________ then fired in a ________.

Answer 10

excavated

conveyor belt

extruded
cut

air-dried
kiln

Question 11

1. Brickwork can fail due to ___________ which causes bricks to __________.
2. Brickwork can fail due to _________ which ____________ in-between bricks.

Answer 11

frost attack
crumble

acid rain
corrodes mortar