6. Mathematical Modeling of Creep and Shrinkage

Try these first

1. 1.

   Define creep in your own words.

   Hint

   Think of it as the change over time when a weight is placed on concrete.

2. 2.

   What causes shrinkage in concrete?

   Hint

   Consider environmental factors and concrete age.

3. 3.

   What defines creep in concrete?

   • A rapid increase in strain
   • Gradual increase in strain under constant load
   • No deformation over time

   Hint

   Think about what happens when a load is applied for a long time.

4. 4.

   True or False: Shrinkage primarily occurs only under heavy loads.

   • True
   • False

   Hint

   Consider the absence of applied forces.

5. 5.

   Given a structural beam's load diagram, calculate the expected creep effects over a 5-year period using the Creep Coefficient method.

   Hint

   Consider the stress values and relevant coefficients.

6. 6.

   Discuss the implications of environmental factors like humidity and temperature on shrinkage predictions in a concrete high-rise building.

   Hint

   Think about how different climates affect concrete behavior.