20.4. Material characterization

Try these first

1. 1.

   What is the definition of Elastic Modulus?

   Hint

   Think about materials that are 'hard' or 'soft'.

2. 2.

   What does the Poisson Ratio describe?

   Hint

   It's about how a material behaves in two directions when stretched.

3. 3.

   What is the primary function of the elastic modulus?

   • To measure stiffness
   • To determine color
   • To assess sound quality

   Hint

   Consider how rigidity relates to weight and shape.

4. 4.

   True or False: Poisson’s ratio only applies to flexible pavements.

   • True
   • False

   Hint

   Think about whether this concept can be limited to just one type.

5. 5.

   Design a pavement layer with specified elastic modulus and Poisson ratio and explain the reasoning behind your choices.

   Hint

   Consider how different materials behave under pressure.

6. 6.

   Critique a pavement design that fails to specify resilient modulus accurately. Describe potential consequences.

   Hint

   Think about implications on durability and safety.