Practice Typical Timeline (3.2) - Segregation - Civil Engineering Materials, Testing & Evaluation

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9 questions

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6 sample questions

Question 1.
What is slump loss?
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Think about what happens to concrete after mixing.
Question 2.
Name one cause of slump loss.
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Consider conditions that could make concrete set faster.
3Question 3.
What is slump loss?
- Loss of water
- Reduction in workability
- Increase in temperature
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Consider what happens to the concrete's ease of handling.
4Question 4.
High temperatures can accelerate slump loss.
- True
- False
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Think about how heat impacts reactions in concrete.
Question 5.
A construction team mixed concrete but didn't place it until after 75 minutes in a 35°C environment. What potential issues may arise, and how could this have been prevented?
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Think about both environmental conditions and planned timing.
Question 6.
Design a strategy for pouring concrete on a hot summer day to mitigate slump loss. Include considerations for materials, timing, and techniques.
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Consider the logistics of temperature control in your plan.

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