Practice Use Of Supplementary Cementitious Materials (17.9.1) - Design of Concrete Mix for Pavements

Practice: Use of Supplementary Cementitious Materials

Lesson 17.9.1Design of Concrete Mix for Pavements

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10 questions

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6 sample questions

Question 1.
What does SCM stand for?
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Remember it helps in improving concrete properties.
Question 2.
Name one Supplementary Cementitious Material.
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Think about materials that help in concrete.
3Question 3.
What role do Supplementary Cementitious Materials (SCMs) play in concrete?
- They reduce strength.
- They enhance durability and sustainability.
- They replace aggregates.
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Think about their benefits we discussed!
4Question 4.
True or False: Fly ash is derived from burning coal.
- True
- False
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Think about the source of different materials.
Question 5.
Given that a concrete mix without SCMs has a carbon footprint of 450 kg of CO2 per ton, calculate the potential reduction when using SCMs that reduces this by 25%.
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Consider the percentage of reduction applied to the total emissions.
Question 6.
Assuming a pavement uses 2000 tons of concrete, determine the amount of fly ash required if it replaces 30% of the cement content, given the cement content is 300 kg/m³ and the total volume is 1000 m³.
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Calculate the volume of cement first, then apply the percentage to find the amount of fly ash.

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