Practice Environmental Considerations During Concreting (12) - Mixing of Concrete

Practice: Environmental Considerations During Concreting

Lesson 12Mixing of Concrete

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9 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What are two issues caused by hot weather during concreting?
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Think about what happens to water and setting times in high temperatures.
Question 2.
Name one precaution for cold weather concreting.
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Consider what could help counteract low temperatures.
3Question 3.
What is a major problem with hot weather concreting?
- Slower setting
- Cracking
- Increased strength
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Think about the effects of dehydration on materials.
4Question 4.
True or False: Using ice in hot weather mixtures can help prevent rapid setting.
- True
- False
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Consider the cooling effects of adding ice.
Question 5.
Develop a comprehensive plan for a construction site located in a region that experiences extreme summer heat and winter cold. Include necessary precautions for both temperature extremes.
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Think about both ends of the temperature spectrum.
Question 6.
Discuss how the properties of concrete change in extreme temperatures and how that impacts structural integrity.
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Reflect on what happens during setting to the concrete's internal structure under temperature stress.

5 more questions in this section. Enroll free to practise them all.