3.7. Influence of Aggregate Characteristics on Concrete Properties

Try these first

1. 1.

   What type of aggregates provide a lower bond strength?

   Hint

   Think of river gravels.

2. 2.

   List the moisture states of aggregates.

   Hint

   Remember the states of moisture.

3. 3.

   Which type of aggregate usually bonds better with cement paste?

   • Smooth aggregates
   • Rough aggregates
   • Both

   Hint

   Think about which texture helps in gripping better.

4. 4.

   True or False: Larger aggregates will always reduce the strength of concrete.

   • True
   • False

   Hint

   Consider the balance of benefits offered by size.

5. 5.

   Evaluate how using entirely smooth aggregates would impact water requirements and concrete performance in a construction project.

   Hint

   Analyze the smoothness impact on bonding strength.

6. 6.

   You are tasked with designing a concrete mix. How will you determine the optimal maximum size of aggregates for a thin slab?

   Hint

   Consider the dimensional limits provided.