18.2.7. Desired Properties in Fresh and Hardened States

Try these first

1. 1.

   What is workability in concrete?

   Hint

   Think of how easily you can handle the concrete when pouring it.

2. 2.

   Name one property of concrete in its fresh state.

   Hint

   Consider what keeps the concrete uniform.

3. 3.

   What does workability refer to in concrete?

   • Ease of mixing
   • Flexural strength
   • Durability

   Hint

   Think about how you would handle wet cement.

4. 4.

   True or False: Durability ensures that concrete withstands environmental actions.

   • True
   • False

   Hint

   Consider concrete exposed to rain and frost.

5. 5.

   Design a concrete mix intended for a high-rise building that requires excellent durability. Explain how each desired property addresses potential challenges.

   Hint

   Focus on environmental challenges the building might face.

6. 6.

   Evaluate how different environmental conditions affect the desired properties in both fresh and hardened states. Provide examples.

   Hint

   Consider the structural integrity of infrastructure under different weather.