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4 cards from this section. Quick, good the night before a test.
What does the water-cement ratio control in concrete?
Think about the properties it affects.
True or False: Lowering the water-cement ratio always improves workability.
Remember the balance between strength and ease of use.
What is the typical range for a W/C ratio in concrete design?
Refer to the standards set for concrete design.
A lower water-cement ratio leads to _____ strength and _____ workability.
Think about the trade-offs in concrete properties.
A concrete mix has a W/C ratio of 0.50. If a contractor decides to reduce the water content to improve strength, what potential problem may arise, and how can this be mitigated during the mixing process?
Consider the trade-offs between workability and strength.
Calculate the proper amount of water needed for a mix with 300 kg of cement and a desired W/C ratio of 0.6. Explain the implications of your choice for different exposure conditions.
Think about how the conditions affect the W/C ratio choices.
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