18.1. Introduction

Try these first

1. 1.

   What is the primary purpose of joint fillers in concrete pavements?

   Hint

   Think about what happens to concrete during temperature changes.

2. 2.

   Name two types of joints found in concrete pavements.

   Hint

   Consider the joint functions.

3. 3.

   What is the primary function of joint fillers?

   • To provide protection against UV rays
   • To allow thermal expansion of concrete
   • To add aesthetic value to pavements

   Hint

   Think about what happens to concrete when it gets hot or cold.

4. 4.

   True or False: Sealers are only used for aesthetic purposes.

   • True
   • False

   Hint

   Consider what happens to exposed joints over time without protection.

5. 5.

   Propose an ideal maintenance schedule for joint fillers and sealers in a high-traffic area. Justify your choices based on their expected performance.

   Hint

   Consider the effects of traffic and weather on wear and tear.

6. 6.

   Evaluate the impact of different environmental conditions on the selection of joint sealers for a concrete pavement in a snowy climate.

   Hint

   Think about what challenges sealers face in extreme weather.