3.3. Stages of Creep

Try these first

1. 1.

   What is creep in concrete?

   Hint

   Think about how materials behave over time when they are loaded.

2. 2.

   List the four stages of creep.

   Hint

   Remember IPST.

3. 3.

   What occurs during instantaneous strain?

   • Immediate deformation upon loading
   • Gradual deformation over time
   • Failure of structure

   Hint

   Consider what happens right away when a load is applied.

4. 4.

   True or False: Tertiary creep is characterized by a steady increase in strain.

   • True
   • False

   Hint

   Think of the characteristics of the stages.

5. 5.

   Analyze a concrete beam subjected to continuous loading and predict its behavior in terms of the four stages of creep.

   Hint

   Think about how each stage impacts the beam's performance over time.

6. 6.

   Evaluate how the humidity and age of the concrete might interact to affect deflection in a beam over time.

   Hint

   Consider how these environmental factors play into your deflection calculations.