9.13. Chemical Attack on Concrete

Try these first

1. 1.

   What is sulfate attack?

   Hint

   Think of how groundwater can affect concrete.

2. 2.

   Name a common acid that can attack concrete.

   Hint

   Think about substances in sewage.

3. 3.

   What is sulfate attack?

   • A physical change
   • A chemical attack
   • A type of curing

   Hint

   Think about how concrete can deteriorate.

4. 4.

   True or False: Acid attack can lead to an increase in mass of the concrete.

   • True
   • False

   Hint

   Consider what happens to concrete when it reacts with acids.

5. 5.

   Given a concrete structure exposed to a high-sulfate environment, outline a complete strategy to mitigate potential sulfate attacks.

   Hint

   Consider both material selection and structural design.

6. 6.

   A concrete plant near an acid-producing factory shows signs of deterioration. What factors might contribute to this, and what recommendations would you make?

   Hint

   Think about how acids can wear down structures over time.