7. Properties and Testing of Aggregates

Try these first

1. 1.

   What is one type of natural aggregate?

   Hint

   Think about common materials found in nature.

2. 2.

   What does the specific gravity measure in aggregates?

   Hint

   It’s a ratio involving water.

3. 3.

   What is the main purpose of the Crushing Test?

   • To measure density
   • To evaluate abrasion resistance
   • To determine crushing value

   Hint

   Focus on the primary function of this test.

4. 4.

   True or False: Durability influences aggregate performance in harsh weather.

   • True
   • False

   Hint

   Consider the lifespan of materials.

5. 5.

   If an aggregate has a crushing value of 35%, what can you infer about its suitability for use in surface courses?

   Hint

   Consider what the limits indicate.

6. 6.

   Evaluate the potential impact of high moisture absorption in aggregates on pavement longevity.

   Hint

   Think about moisture's role in construction materials.