18.4. Joint Sealers

Try these first

1. 1.

   What is the primary purpose of joint sealers?

   Hint

   Think about what might harm the joints over time.

2. 2.

   Name one property that ideal joint sealants should have.

   Hint

   Consider how sealants must interact with the surfaces.

3. 3.

   What is the function of joint sealers?

   • To allow water to seep through
   • To seal joints and protect against moisture
   • To increase the pavement weight

   Hint

   Think about their protective roles.

4. 4.

   True or False: Cold-poured sealants require heating before application.

   • True
   • False

   Hint

   Remember how hot-poured sealants differ.

5. 5.

   Given a concrete pavement experiencing regular temperature fluctuation, propose the type of sealant to use and justify your choice.

   Hint

   Think about how the sealant's properties relate to environmental conditions.

6. 6.

   Analyze a situation where a joint sealer has failed. What are the possible causes, and what steps would you recommend for remediation?

   Hint

   Focus on the importance of each step in the installation process.