4.11.2 - Metro and Tunnel Projects
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Practice Questions
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What is the main purpose of superplasticizers in concrete?
💡 Hint: Think about fluidity and strength.
Name one benefit of waterproofing admixtures.
💡 Hint: Consider the environment around tunnels.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main role of superplasticizers in concrete?
💡 Hint: Think about what makes concrete easier to work with.
True or False: Waterproofing admixtures are unnecessary in tunnel construction.
💡 Hint: Consider the environmental conditions of tunnels.
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Challenge Problems
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Propose a solution for a construction scenario where the concrete for a metro tunnel has become too stiff to pump. What admixture would you recommend?
💡 Hint: Think of what can enhance fluidity.
If a tunnel's waterproofing admixtures failed and water began leaking, outline the steps you'd take to evaluate the damage and mitigate issues.
💡 Hint: Consider how to protect structural integrity and safety first.
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