7. Case Studies of Durability Failures

Try these first

1. 1.

   What happens to water in concrete during freeze conditions?

   Hint

   Consider the physical property of water when it freezes.

2. 2.

   Name a preventative measure against sulphate attack.

   Hint

   Think about cement types that are specifically designed for harsh conditions.

3. 3.

   What is a major consequence of freeze-thaw cycles on concrete?

   • Cracking
   • Increased strength
   • Improved durability

   Hint

   Think about how temperature changes affect solid materials.

4. 4.

   True or False: High permeability increases the risk of sulphate attack.

   • True
   • False

   Hint

   Consider how liquids interact with solid materials.

5. 5.

   You are tasked with designing a marine jetty. Outline the key specifications you would implement to enhance its durability against environmental factors.

   Hint

   Consider how various environmental conditions could impact your design.

6. 6.

   How would you approach a situation where a bridge deck, already showing signs of freeze-thaw damage, needs repair? Discuss the necessary steps.

   Hint

   Think about the reverse engineering: How would you fix what went wrong?