4.6. Mitigation of Shrinkage and Shrinkage Cracking

Try these first

1. 1.

   What is the impact of a low water-cement ratio on concrete?

   Hint

   Think about the components that make up concrete.

2. 2.

   Name one method that can be used for curing concrete.

   Hint

   Consider what would keep the concrete moist.

3. 3.

   What is the main purpose of using a low water-cement ratio in concrete?

   • To increase workability
   • To reduce shrinkage
   • To lower cost

   Hint

   Think about the different properties of concrete.

4. 4.

   True or False: Curing compounds can help retain moisture in concrete.

   • True
   • False

   Hint

   Consider how we can maintain moisture in any solid.

5. 5.

   Design a comprehensive prevention plan for shrinkage and cracking in a new residential driveway. Consider environmental factors, material choices, and structural detailing.

   Hint

   What factors would influence shrinkage in a driveway?

6. 6.

   Explain how the choice of admixtures can impact the performance of concrete in a hot climate. What formulations would you suggest?

   Hint

   Consider how temperature affects hydration.