What does the term 'fatigue cracking' refer to in pavement engineering?

Practice Questions

Q1
What does the term 'fatigue cracking' refer to in pavement engineering?
  1. Cracking due to thermal expansion
  2. Cracking due to repeated traffic loading
  3. Cracking due to moisture infiltration
  4. Cracking due to poor material quality

Questions & Step-by-Step Solutions

What does the term 'fatigue cracking' refer to in pavement engineering?
  • Step 1: Understand that 'fatigue cracking' is a type of damage that happens to roads and pavements.
  • Step 2: Know that this damage is caused by vehicles driving over the pavement many times.
  • Step 3: Realize that each time a vehicle drives over the pavement, it puts stress on the surface.
  • Step 4: Understand that over time, this repeated stress can cause cracks to form in the pavement.
  • Step 5: Recognize that these cracks are called 'fatigue cracks' because they happen due to the 'fatigue' of the material from repeated use.
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