12.2. Lower Carbon Footprint

Try these first

1. 1.

   What is a key characteristic of High Performance Concrete?

   Hint

   Think about durability.

2. 2.

   What is fly ash used for in HPC?

   Hint

   Remember it replaces part of the cement.

3. 3.

   What role do Supplementary Cementitious Materials play in reducing carbon footprint?

   • Increase production emissions
   • Replace part of the cement to reduce CO2
   • Have no effect on emissions

   Hint

   Think about materials that improve performance and reduce cement usage.

4. 4.

   True or False: HPC typically requires more water than conventional concrete.

   • True
   • False

   Hint

   Recall the characteristics of HPC.

5. 5.

   Propose a new sustainable mix design for a high-performance structure, incorporating at least two SCMs, and justify your choices.

   Hint

   Focus on the strengths and sustainability of each SCM.

6. 6.

   Evaluate the impact of higher strength HPC in bridge applications on maintenance and lifecycle costs compared to traditional concrete.

   Hint

   Connect strength to long-term benefits.