4.1. Challenges in Marine Environment

Try these first

1. 1.

   What is Chloride Attack?

   Hint

   Think about how seawater affects steel.

2. 2.

   Define Sulphate Attack.

   Hint

   It's related to groundwater and soil.

3. 3.

   What initiates chloride-induced corrosion?

   • Water
   • Chlorides
   • Acids

   Hint

   Think about where chlorides come from.

4. 4.

   True or False: Sulphate attack can only originate from external sources.

   • True
   • False

   Hint

   Recall the different types of sulphate attack.

5. 5.

   A coastal bridge has begun to show surface scaling and cracking after five years. Propose a diagnostic approach to determine whether chloride attack is occurring and suggest preventive measures.

   Hint

   Examine both the environmental factors and the material properties.

6. 6.

   A marine platform constructed with standard concrete is experiencing sulphate attack. Discuss how material selection could have mitigated this issue.

   Hint

   Think about mixing design and environmental compatibility.