13.2. Exposure Classifications (as per IS 456:2000)

Try these first

1. 1.

   What is mild exposure in concrete construction?

   Hint

   Think about locations that experience low rainfall.

2. 2.

   Name the classification with minimal threats to concrete.

   Hint

   This is the least severe category.

3. 3.

   What is considered mild exposure?

   • Low moisture conditions
   • High humidity
   • Chemical-rich environments

   Hint

   Refer back to locations with less rain.

4. 4.

   True or False: All precast concrete needs special treatment regardless of exposure classification.

   • True
   • False

   Hint

   Consider differing classifications.

5. 5.

   For a building in a severe exposure area like a coastal port, outline the required concrete specifications and justifications.

   Hint

   Focus on the battles against saltwater and moisture.

6. 6.

   Compare the treatment of concrete in mild versus extreme exposure classifications. Discuss how environmental factors dictate material selection.

   Hint

   Think about the differences in environmental aggressiveness.