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2 cards from this section. Quick, good the night before a test.
What is one of the main environmental concerns regarding concrete production?
Think about the gas that contributes to climate change.
Name one type of Supplementary Cementitious Material.
What is produced as a byproduct of burning coal?
What is the primary reason for the environmental impact of concrete?
Think about the process that generates CO₂ emissions.
True or False: Recycled aggregates have no impact on sustainability.
Consider what happens to waste materials in contrast to using new ones.
Calculate the potential reduction in CO₂ emissions by substituting 30% of a cement mix with fly ash, considering the average emission from 1 ton of cement is 0.8 tons of CO₂.
Focus on the proportions and then multiply by the CO₂ emissions per ton.
Propose a sustainable concrete mix design for a high-performance structure using both fly ash and recycled aggregates, detailing the expected benefits.
Consider how the interaction of materials leads to improved performance.
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