4.1. Classification of Cracks

Try these first

1. 1.

   What type of crack is typically harmless to structural integrity?

   Hint

   Think about cosmetic vs. functional impacts.

2. 2.

   Define thermal cracking.

   Hint

   Consider how heat affects materials.

3. 3.

   What type of cracks indicate serious structural failure risk?

   • A. Non-structural
   • B. Structural
   • C. Surface

   Hint

   Focus on what affects strength.

4. 4.

   True or False: Non-structural cracks can be ignored.

   • True
   • False

   Hint

   Think about the definitions.

5. 5.

   You are designing a concrete structure in a coastal area. What measures would you implement to prevent corrosion-induced cracking in the steel reinforcement?

   Hint

   Think of types of protective measures.

6. 6.

   Discuss the potential consequences of neglecting alkali-silica reaction in your design. What preventive measures can be adopted?

   Hint

   Consider material choices in your concrete mix.