10.2. Carbon Footprint Reduction

Try these first

1. 1.

   What is the environmental impact of cement production?

   Hint

   Think about the emissions involved in the production process.

2. 2.

   Name one mineral admixture used to reduce carbon emissions.

   Hint

   It's a by-product of burning coal.

3. 3.

   What is the estimated CO2 reduction when substituting 1 ton of cement with fly ash?

   • 0.5 tons
   • 0.9 tons
   • 1.2 tons

   Hint

   Remember the direct relation of substitute materials to emissions.

4. 4.

   High-volume fly ash concrete can reduce CO2 emissions by what percentage compared to OPC concrete?

   • 20%
   • 30%
   • 40%

   Hint

   This reflects the benefits of increasing fly ash content.

5. 5.

   How do the properties of concrete change when using HVFAC instead of traditional OPC?

   Hint

   Consider the changes in chemical interactions.

6. 6.

   Evaluate the long-term sustainability impacts of using GGBS in large infrastructure projects.

   Hint

   Think about both environmental and structural implications.