5.2. Properties of Aggregates

Try these first

1. 1.

   What is the main function of aggregates in concrete?

   Hint

   Think about the composition of concrete.

2. 2.

   What does specific gravity indicate?

   Hint

   Consider the ratio of weights.

3. 3.

   Which property indicates how well aggregate resists crushing?

   • Water Absorption
   • Crushing Strength
   • Specific Gravity

   Hint

   Think about load-bearing capabilities.

4. 4.

   True or False: Angular aggregates have lower workability but provide higher strength.

   • True
   • False

   Hint

   Recall the characteristics of different shapes.

5. 5.

   Analyze the implications of using recycled aggregates with high water absorption in a concrete mix design.

   Hint

   Consider how adjusting ingredients affects the final mix.

6. 6.

   Compare and contrast the use of angular versus rounded aggregates in high-performance concrete applications.

   Hint

   Evaluate both types based on different performance needs.