6.1 - Requirements of Water for Construction
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Practice Questions
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What is the optimal pH range for water used in mixing concrete?
💡 Hint: Think about what pH scale values are acceptable for concrete.
Name one impurity that should not be in mixing water for concrete.
💡 Hint: Consider substances that could harm the cement.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the maximum permissible total dissolved solids (TDS) level for mixing water?
💡 Hint: Recap the values mentioned for mixing water requirements.
True or False: Sugar content in mixing water can adversely affect the setting time of concrete.
💡 Hint: Think about impacts on hydration and setting.
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Challenge Problems
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A construction site is using well water with TDS levels of 3000 mg/L, and chloride levels of 600 mg/L. Discuss the potential impacts this water quality could have on concrete strength and durability.
💡 Hint: Consider how these impurities affect the chemical composition and health of concrete.
After using river water for mixing concrete, the project started experiencing rapid setting times and weak concrete after testing. Identify possible impurities and suggest monitoring or testing actions.
💡 Hint: Think about the potential sources of contamination in river water.
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