3.1. Classification of Aggregates

Try these first

1. 1.

   What is the size of fine aggregates?

   Hint

   Think about what helps to fill voids in concrete.

2. 2.

   Name an example of coarse aggregates.

   Hint

   Consider materials used for structural support.

3. 3.

   What size defines fine aggregates?

   • Less than 4.75 mm
   • Greater than 4.75 mm
   • Exactly 4.75 mm

   Hint

   Remember, they fill gaps in concrete.

4. 4.

   True or False: Recycled aggregates can negatively impact the durability of concrete.

   • True
   • False

   Hint

   Think of the benefits of recycling.

5. 5.

   Discuss the advantages and disadvantages of using recycled aggregates versus natural aggregates in concrete production.

   Hint

   Consider sustainability vs. performance.

6. 6.

   How would the choice of aggregate shape influence the design of a concrete structure intended for heavy loads?

   Hint

   Relate shape characteristics to load-bearing requirements.