4.3. Zones of Exposure

Try these first

1. 1.

   What is the Atmospheric Zone?

   Hint

   Think about what happens to concrete above sea level.

2. 2.

   Name the zone that is most aggressive in terms of wave action.

   Hint

   It's the zone exposed to water movement.

3. 3.

   What zone is most affected by wetting and drying cycles?

   • Atmospheric Zone
   • Splash Zone
   • Tidal Zone
   • Submerged Zone

   Hint

   Think about which area is regularly submerged and exposed.

4. 4.

   True or False: The Splash Zone does not impact the durability of concrete.

   • True
   • False

   Hint

   Recall the effects of water on concrete.

5. 5.

   Analyze a structure designed for the marine environment. Identify its exposure zones and the relevant protective strategies for each.

   Hint

   Break down the structure's locations and conditions.

6. 6.

   Evaluate the durability of a hypothetical marine jetty built in the Splash Zone. Suggest design improvements.

   Hint

   Consider both material selection and technique.