1.1. High Strength

Try these first

1. 1.

   What is the typical compressive strength of High Performance Concrete at 28 days?

   Hint

   Think of concrete grades.

2. 2.

   Name one characteristic that differentiates HPC from conventional concrete.

   Hint

   Consider the longevity of the material.

3. 3.

   What is the primary characteristic that defines High Performance Concrete?

   • Low durability
   • High strength
   • Low workability

   Hint

   Reflect on the name of the concrete type.

4. 4.

   True or False: HPC is designed to have a single compressive strength threshold.

   • True
   • False

   Hint

   Consider the definition provided.

5. 5.

   Given that HPC can exceed 100 MPa in compressive strength, how would you calculate the volume of concrete needed for a column design that supports a load of 1,000 kN? Assume specific weight of concrete is 24 kN/m³.

   Hint

   Use the load formula, dividing by density to find volume.

6. 6.

   Compare and contrast the costs and benefits of using HPC in skyscrapers versus traditional concrete. What are the long-term considerations?

   Hint

   Think about lifecycle costs, not just immediate expenses.