3.5. Effects of Creep

Try these first

1. 1.

   What is creep in concrete?

   Hint

   Think about what happens when a load is applied to concrete over time.

2. 2.

   Name the first stage of creep.

   Hint

   It happens immediately when the load is applied.

3. 3.

   What is creep?

   • A sudden crack
   • A gradual strain increase under constant load
   • An explosive failure
   • None of the above

   Hint

   Think about how the load changes the structure over time.

4. 4.

   True or False: Tertiary creep is the most common stage in well-designed structures.

   • True
   • False

   Hint

   Reflect on different stages and their significance.

5. 5.

   Explain how you would assess the risk of creep in a newly constructed prestressed concrete bridge. What measurements or tools would you employ?

   Hint

   Consider both the environmental and material factors.

6. 6.

   Design a simple experiment to observe the effects of different stress levels on creep in concrete samples. What variables will you control?

   Hint

   Think about how controlled the environment needs to be.