6.2.2 - Effect on Strength
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Practice Questions
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What happens when chlorides are present in water used for concrete?
💡 Hint: Think about how chlorides interact with steel.
What are sulphates known to do in concrete?
💡 Hint: Consider their effect on the cement's reaction.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What type of impurities can severely affect the strength of concrete?
💡 Hint: Consider the impact of both on hydration.
True or False: Chlorides can cause premature hardening of concrete.
💡 Hint: Reflect on what premature hardening means.
1 more question available
Challenge Problems
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A construction engineer is tasked to use concrete in a heavy traffic area. The local water source has high chloride content. What steps could the engineer take to ensure the concrete's strength?
💡 Hint: Think about ways to enhance water quality.
Two concrete samples were made, one with clean water and one with water containing high levels of sulphates. After curing, the sulphate-treated sample cracked significantly more. What are the implications for engineers?
💡 Hint: Reflect on testing protocols for water quality.
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