17.5.2 - Step 2: Selection of Water-Cement Ratio
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Practice Questions
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What is the water-cement ratio?
💡 Hint: Think about its importance in concrete.
Why is water-cement ratio important?
💡 Hint: Consider how too much or too little water would impact concrete.
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Interactive Quizzes
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What does the water-cement ratio influence in concrete?
💡 Hint: Consider what happens when you change the ratio.
True or False: A higher water-cement ratio always results in stronger concrete.
💡 Hint: Remember the balance needed in mix designs.
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Challenge Problems
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Given the need for a pavement with a target flexural strength of 5 MPa, and circumstances requiring excellent workability due to high temperatures, how would you go about selecting the appropriate water-cement ratio?
💡 Hint: Which tables would help in this scenario?
Design a concrete mix by selecting a water-cement ratio for an urban environment that often faces freeze-thaw cycles, ensuring both durability and strength.
💡 Hint: What environmental factors must you keep in mind?
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