23.4.4. Specific Gravity Test

Try these first

1. 1.

   What is specific gravity?

   Hint

   Think about the relationship between mass and volume.

2. 2.

   How can specific gravity impact the choice of bitumen in pavement construction?

   Hint

   Consider the implications of weight and density.

3. 3.

   What does specific gravity indicate in bitumen?

   • It measures viscosity
   • It compares density to water
   • It measures elasticity

   Hint

   Relate this to the concept of density.

4. 4.

   True or False: Specific gravity for bitumen typically ranges from 0.95 to 1.05.

   • True
   • False

   Hint

   Recall the typical values discussed.

5. 5.

   A sample of bitumen has a mass of 980 grams with a volume of 1 liter. Calculate the specific gravity of the bitumen and discuss what this implies for its use in construction.

   Hint

   Consider how this density impacts construction suitability.

6. 6.

   If you have two bitumen samples with specific gravities of 0.95 and 1.01, explain how you would choose which to use for a high-load road. What factors would you consider?

   Hint

   Think about the properties required for high-load applications.