2. Materials for High Performance Concrete

Try these first

1. 1.

   What is the commonly used cement type in HPC?

   Hint

   Think about a high-strength cement option.

2. 2.

   Name one example of a supplementary cementitious material.

   Hint

   These materials enhance concrete properties.

3. 3.

   What is the maximum size of coarse aggregate typically used in HPC?

   • 10 mm
   • 20 mm
   • 30 mm

   Hint

   Think about how larger sizes may affect workability.

4. 4.

   True or False: Concrete with high amounts of silica fume tends to have higher permeability.

   • True
   • False

   Hint

   Consider how smaller particles work in filling gaps.

5. 5.

   Develop a concrete mix design for a high-stress application that requires the use of SCMs, fibers, and low water-cement ratios. Discuss each component's role.

   Hint

   Consider the environmental conditions and performance requirements.

6. 6.

   Explain how you would assess the quality of water before mixing it into HPC. What tests would you conduct?

   Hint

   Think about how impurities affect hydration and overall strength.