11.4.2. Chloride Ingress

Try these first

1. 1.

   What causes chloride ingress in concrete?

   Hint

   Think about sources of salt in the environment.

2. 2.

   What happens when steel reinforcement corrodes?

   Hint

   Consider the physical changes that occur in the structure.

3. 3.

   What is chloride ingress?

   • The process of mineral absorption
   • The penetration of chloride ions into concrete
   • The layering of concrete slabs

   Hint

   Think about the role of chlorides in concrete.

4. 4.

   True or False: Chloride ions can never cause deterioration in concrete.

   • True
   • False

   Hint

   Reflect on the effects of chlorides.

5. 5.

   Design a concrete structure intended for a marine environment. Explain the considerations you would include to mitigate chloride ingress.

   Hint

   Address material choice and structural design.

6. 6.

   Evaluate the impact of chloride ingress on the overall service life of a bridge. Based on this evaluation, propose a maintenance schedule.

   Hint

   Factor in timelines and structural health monitoring.