9.17.2. Ultra-High Performance Concrete (UHPC)

Try these first

1. 1.

   What is the minimum compressive strength that qualifies concrete as UHPC?

   Hint

   Think about strength benchmarks for concrete.

2. 2.

   Name one key property of UHPC.

   Hint

   Consider what helps concrete resist water ingress.

3. 3.

   What is the compressive strength threshold for UHPC?

   • 50 MPa
   • 75 MPa
   • 150 MPa

   Hint

   It’s significantly higher than regular concrete.

4. 4.

   Is UHPC commonly used in high-rise buildings?

   • True
   • False

   Hint

   Consider what types of constructions benefit from strength.

5. 5.

   Design a mix for a UHPC that requires a specific strength of 160 MPa. Consider the proportions of ingredients and justification for your choices.

   Hint

   Think about the properties that contribute to high strength.

6. 6.

   Evaluate the cost-benefit scenario of using UHPC in a bridge project versus traditional concrete. Discuss aspects like long-term maintenance and performance.

   Hint

   Consider the lifespan and repairs associated with different types of concrete.