6.1.7. Water Absorption and Specific Gravity

Try these first

1. 1.

   What is the maximum allowable water absorption percentage for road aggregates?

   Hint

   Think about how much water is too much for quality road aggregates.

2. 2.

   What range does specific gravity typically fall within for road aggregates?

   Hint

   Consider the typical density comparison.

3. 3.

   What is the maximum water absorption value for quality road aggregates?

   • 1%
   • 2%
   • 3%
   • 4%

   Hint

   Remember the upper limits discussed.

4. 4.

   Specific gravity values for road aggregates are generally between which ranges?

   • 2.0 to 2.5
   • 2.5 to 3.0
   • 3.0 to 3.5
   • 1.5 to 2.0

   Hint

   Associative thinking may help you recall this.

5. 5.

   Evaluate a scenario where aggregates with an average specific gravity of 2.3 are used for heavy traffic roads. Analyze possible performance issues.

   Hint

   Assess how density affects load endurance.

6. 6.

   Design an experiment to compare the water absorption rates of two aggregate samples. What observations would indicate which one is superior?

   Hint

   Focus on percentage differences in weight before and after immersion.