9.12. Volume Changes and Cracking

Try these first

1. 1.

   What is one cause of volume change in concrete?

   Hint

   Think about water's effect on size.

2. 2.

   Name one type of non-structural crack.

   Hint

   Consider what happens when concrete dries.

3. 3.

   Which of the following is NOT a cause of volume change in concrete?

   • Moisture movement
   • Thermal expansion
   • Steel reinforcement

   Hint

   Remember what influences changes in size.

4. 4.

   True or False: Non-structural cracks can compromise the integrity of concrete.

   • True
   • False

   Hint

   Think about the implications of such cracks.

5. 5.

   Explain how external loading can lead to volume changes and cracks in a concrete structure.

   Hint

   Consider the types of loads applied and their effects over time.

6. 6.

   Design a small experiment to observe the effects of moisture movement on concrete curing.

   Hint

   Think about how different curing conditions will affect moisture retention.