Mortar Flashcards
1
Q
How much mortar can one person mix in an hour?
A
One cubic yard
2
Q
What are the characteristics of good mortar forms?
A
Tight
Rigid
Strong
3
Q
What are the nominal and actual measurements of a concrete block?
A
Nominal: 8” x 8” x 16”
Actual: 7-5/8” x 7-5/8” x 15-5/8”
Allows for 3/8” mortar joint
4
Q
Types of mortar
A
M, S, N, and O
5
Q
Desirable properties of mortar
A
Plasticity
Water retentivity
Strength and durability
6
Q
How much space should be left for the closure block?
A
16-1/2”
7
Q
What does planning save?
A
Considerable labor
Time
Materials
8
Q
When can you tool joints?
A
Once they are thumbprint hard