Practice Effects On Concrete Structures (3) - Creep of Concrete - Concrete Technology

Practice: Effects on Concrete Structures

Lesson 3Creep of Concrete

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9 questions

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6 sample questions

Question 1.
What is creep in concrete?
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Think of how materials can change under constant pressure.
Question 2.
What can cause cracking in concrete due to shrinkage?
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Consider how concrete changes as it dries.
3Question 3.
What is creep in concrete?
- A short-term deformation
- A gradual increase in strain
- A type of crack
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Remember what happens to concrete when a constant load is applied over a long period.
4Question 4.
True or False: Shrinkage does not affect the structural integrity of concrete.
- True
- False
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Think about the consequences of material changes over time.
Question 5.
Consider a newly erected 20-meter beam. If excessive creep causes a projected deflection exceeding 35mm by the end of its service life, what actions should a civil engineer propose to mitigate this risk?
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Think about both material properties and structural design.
Question 6.
Evaluate how the use of supplementary cementitious materials might influence shrinkage rates in a large concrete pour and its consequent cracking patterns.
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Consider the properties of the materials used.

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