QUIZ 5/6 (Steel, Masonry) Flashcards
What is the difference between iron and steel?
Steel is an alloy of iron and carbon, while iron is a pure metal. Steel has enhanced mechanical properties due to the carbon content.
What is the effect of carbon content on structural steel?
Increased carbon content leads to higher strength but reduced ductility.
Explain the process of hot dip galvanizing.
Steel is dipped into molten zinc to form a protective layer, preventing corrosion.
What are the functions of brick mortar?
Provides an even bedding for masonry units, transmits compressive loads, and holds units together through bond strength.
What is the primary purpose of the Dimensional Category Test for bricks?
To evaluate conformity to specified dimensions and tolerances.
How does water absorption influence brick bonding?
Ensuring water absorption of bricks matches the water retention of mortar ensures a strong bond.
Describe the stages of firing in brick manufacturing.
Final drying, dehydration, oxidation, vitrification, and flashing.
What are the conditions for salt attack in bricks?
Presence of salts, water ingress, and water evaporation from the surface.
What is the purpose of a control joint in masonry?
To allow for expansion and contraction, preventing cracking in walls.
