14.3.2.1. Tensile Strength Ratio (TSR)

Try these first

1. 1.

   What does TSR stand for?

   Hint

   Think of how strength is measured in materials.

2. 2.

   Why is moisture susceptibility important?

   Hint

   Consider the impact of water on roads.

3. 3.

   What does a TSR value of 0.8 indicate?

   • Good moisture resistance
   • Poor moisture resistance
   • Excellent durability

   Hint

   Recall the definitions of acceptable TSR values.

4. 4.

   The primary goal of the TSR test is to assess what?

   • True
   • False

   Hint

   What is the key function of this test?

5. 5.

   A pavement mix has a dry tensile strength of 300 psi and a wet tensile strength of 240 psi. Calculate the TSR and determine moisture susceptibility based on standard thresholds.

   Hint

   Use the formula of TSR correctly!

6. 6.

   If an engineer wants to improve a pavement mix with a TSR of 0.75, what changes could they consider to enhance moisture resistance? List at least two strategies.

   Hint

   Think about what methods enhance the bond in wet conditions.