Practice Types Of Shrinkage (2.2) - Creep of Concrete

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9 questions

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6 sample questions

Question 1.
What causes plastic shrinkage?
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Think about what happens to water on a hot day.
Question 2.
What is drying shrinkage?
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Consider long-term effects of moisture loss.
3Question 3.
What is the primary cause of plastic shrinkage?
- Moisture loss from capillary pores
- Rapid evaporation of surface water
- Chemical reactions in cement
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Think about what happens to water on a hot surface.
4Question 4.
True or False: Drying shrinkage continues indefinitely after concrete hardens.
- True
- False
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Consider what happens over time.
Question 5.
Calculate the total volume reduction experienced by a concrete slab subjected to drying shrinkage if the initial volume was 100 m³ and it shrank by 600 µε after one year.
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Remember that 1 µε = 1e-6 strain.
Question 6.
Discuss how the types of shrinkage could interact in a high-performance concrete structure, and make recommendations for design adjustments.
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Consider how environmental conditions affect the concrete immediately and over time.

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