7. Practical Examples and Case Studies

Try these first

1. 1.

   What is the definition of creep in concrete?

   Hint

   Think about how concrete behaves over time when loaded.

2. 2.

   Name one factor that can influence shrinkage in concrete.

   Hint

   Consider what happens with more water.

3. 3.

   What is creep in concrete?

   • A) Structural cracking
   • B) Gradual deformation under load
   • C) Water loss

   Hint

   Consider how materials respond to prolonged weight.

4. 4.

   True or False: Shrinkage only occurs when concrete is under load.

   • True
   • False

   Hint

   Think about what happens to concrete once it has hardened.

5. 5.

   Given a scenario where a 20-storey building has shown deflections of 25mm over 5 years due to creep, calculate the average creep rate per year. What design changes could mitigate future issues?

   Hint

   Consider dividing the total deflection by the total duration.

6. 6.

   Suppose a bridge segment experiences a shortening of 10mm due to both creep and shrinkage. If shrinkage is determined to be 6mm, what is the contribution of creep? Discuss how this can be addressed in future designs.

   Hint

   Think about how to isolate what part of the shortening is due to each factor.