6.1. Corrosion of Reinforcement

Try these first

1. 1.

   What is the primary cause of corrosion in reinforced concrete?

   Hint

   Think about what elements react with steel in concrete.

2. 2.

   Name one technique to protect against corrosion.

   Hint

   More coverage means less exposure.

3. 3.

   What primarily initiates corrosion of reinforcement in concrete?

   • Moisture
   • Chloride ions
   • Temperature

   Hint

   Consider the environmental factors that affect concrete.

4. 4.

   True or False: Carbonation decreases the pH, making steel more prone to corrosion.

   • True
   • False

   Hint

   Think about the chemical reactions taking place.

5. 5.

   Analyze a scenario where a coastal bridge is experiencing rapid corrosion. What are the steps you would recommend to assess and mitigate the corrosion?

   Hint

   Think about both preventive and remedial actions.

6. 6.

   Calculate the potential cost savings of preventing corrosion in a bridge over its expected 75-year lifecycle, considering maintenance and repair costs due to corrosion.

   Hint

   Look at historical maintenance records for similar structures to establish a baseline.