18.3.1. Definition and Function

Try these first

1. 1.

   What are joint fillers used for in concrete pavements?

   Hint

   Think about the main function of joint fillers.

2. 2.

   What is compressibility?

   Hint

   Consider what happens when a sponge is squeezed.

3. 3.

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

   • To allow water to enter
   • To manage thermal expansion
   • To strengthen the concrete

   Hint

   Think about why concrete expands and contracts.

4. 4.

   True or False: Joint fillers need to be compressible.

   • True
   • False

   Hint

   Consider how these materials behave under pressure.

5. 5.

   You are tasked with designing a new concrete pavement. Explain how you would select the appropriate joint filler material and what factors you would consider.

   Hint

   Reflect on the properties of different materials.

6. 6.

   Analyze the consequences of improper installation of joint fillers in concrete pavements. What long-term effects might this cause?

   Hint

   Think about the relationship between installation quality and pavement longevity.