Practice Carbonation Of Concrete (3) - Durability of Concrete - Civil Engineering Materials, Testing & Evaluation

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9 questions

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6 sample questions

Question 1.
What is carbonation in concrete?
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Think of the gas that reacts with concrete.
Question 2.
What color does phenolphthalein turn in alkaline conditions?
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What color indicates a basic reaction?
3Question 3.
What chemical process occurs when CO₂ interacts with concrete?
- Oxidation
- Carbonation
- Hydration
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Consider the name of the process.
4Question 4.
True or False: Carbonation increases the pH level of concrete.
- True
- False
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Think about whether carbonation is making something more or less alkaline.
Question 5.
Assess a theoretical concrete mix with high permeability. Describe how this would influence carbonation depth over 10 years and suggest mitigative measures.
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Consider permeability's role and how to enhance durability.
Question 6.
Devise an experimental method to measure the rate of carbonation in two different concrete compositions. Discuss expected outcomes.
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Think about which factors will alter your experimental results.

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