26.3.1. Theoretical specific gravity of the mix G t

Try these first

1. 1.

   What is the formula for calculating theoretical specific gravity G_t?

   Hint

   Think about the individual component weights.

2. 2.

   List the components required to calculate G_t.

   Hint

   Recall the types of materials in the mix.

3. 3.

   What does G_t represent in asphalt mix design?

   • Volume of voids
   • Theoretical specific gravity
   • Actual specific gravity

   Hint

   Think about what the term 'theoretical' indicates.

4. 4.

   True or False: Air voids are included when calculating G_t.

   • True
   • False

   Hint

   Consider the meaning behind excluding air voids.

5. 5.

   Given a set of graduated weight values for different aggregates and their specific gravities, compute the G_t using synthetic data, and explain your reasoning.

   Hint

   Double check each component's weight while computing.

6. 6.

   Analyze how using different materials with varied specific gravities affects G_t and thus the overall performance of asphalt pavements.

   Hint

   Consider durability, mix design specifications, and real-world usage.