Questions and Answers 100% Pass
What is the definition of masonry? - ✔✔construction material that is formed by
combining units such as bricks and stone with a binding material called mortar.
List the parameters that impact the characteristics and strength of masonry work. -
✔✔1. Properties of Masonry units
2. method of joining
3. bonding
4. anchoring
5. mortar type
List the important functional types of Masonry - ✔✔1. Density
2. Compressive strength
3. flexural strength
4. modulus of elasticity
5. thermal conductivity
What are the general properties of mortar? - ✔✔1. Accounts for as little as 7% of the
total volume of the masonry.
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, 2. But it influences performance more than this proportion indicates
What are the functional properties of mortar? - ✔✔1. Binds individual brick units
together.
2. Seals against air moisture penetration
3. Bonds with steel reinforcing, metal ties and anchor bolts to join the building together
structurally.
List the five Key Mortar Characteristics - ✔✔1. Workability.
2. Compressive strength.
3. Extensibility and volume change.
4. Retentivity and flow.
5. Bond strength.
List mortar basic ingredients - ✔✔1. Portland Cement
2. Lime
3. Sand
List, where possible, one positive and one negative impact of each of mortar's basic
ingredients on mortar. If not possible, list two impacts of the ingredient on mortar. -
✔✔a. cement - high compressive strength, high vulnerability to cracking
b. lime - filler material.
c. sand - filler material.
List the types of mortar - ✔✔1. M - high strength - use below grade
2. S - medium high strength - use above and below grade
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