15.7.2. Parameters

Try these first

1. 1.

   What is the importance of gyration angle in the SGC?

   Hint

   Think about how the mix is compacted.

2. 2.

   Why do we apply vertical pressure during compaction?

   Hint

   Consider the objective of asphalt compaction.

3. 3.

   What does the gyration angle influence in asphalt compaction?

   • Uniformity of density
   • Cost of materials
   • Mix color

   Hint

   Focus on what aspect of the mix changes with angle adjustment.

4. 4.

   True or False: Higher vertical pressure always leads to better performance.

   • True
   • False

   Hint

   Think about the consequences of too much pressure.

5. 5.

   In a new asphalt pavement design for a road expected to handle heavy truck traffic, you need to decide on the gyration angle, vertical pressure, and number of gyrations. List these parameters with reasoning for your choices.

   Hint

   Base your decisions on the expected load and environmental conditions.

6. 6.

   Discuss how changes in the number of gyrations might not only affect the performance of the asphalt but also the budget over the project's lifecycle.

   Hint

   Think about the balance between short-term costs and long-term benefits.