18.4.1. Purpose and Function

Try these first

1. 1.

   What is the main purpose of a joint sealer?

   Hint

   Think about what happens when water enters.

2. 2.

   Name one material that can be used as a joint sealer.

   Hint

   Recall the different types mentioned in the material.

3. 3.

   What is the primary function of a joint sealer in concrete pavements?

   • Water ingress prevention
   • Aesthetic improvement
   • None of the above

   Hint

   Remember, what do we want to keep out of the joints?

4. 4.

   True or False: Joint sealers can decrease the lifespan of a pavement.

   • True
   • False

   Hint

   Think about their purpose.

5. 5.

   Evaluate a concrete pavement project that failed due to improper joint sealing. What could have been done differently?

   Hint

   Think about the importance of initial preparation and choosing the right materials.

6. 6.

   Design a case study focusing on the impacts of water ingress in a specific infrastructure project lacking joint sealers. Discuss the resultant damages and restoration methods.

   Hint

   Consider how increasing water exposure would influence structural integrity.