Practice Measurement Of Shrinkage (2.4) - Creep of Concrete

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8 questions

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6 sample questions

Question 1.
What is shrinkage in concrete?
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Think about moisture and its effects.
Question 2.
What size are standard test specimens for measuring shrinkage?
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Remember the dimensions discussed.
3Question 3.
What is the standard size of a test specimen for measuring shrinkage?
- 50mm × 50mm × 150mm
- 75mm × 75mm × 285mm
- 100mm × 100mm × 300mm
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Recall the dimensions mentioned earlier.
4Question 4.
True or False: Shrinkage occurs only when concrete is subjected to an external load.
- True
- False
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Consider the definition of shrinkage.
Question 5.
A concrete prism was subjected to a drying environment and its length decreased from 285mm to 284.5mm after one year. Calculate the shrinkage strain.
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Use the shrinkage strain formula.
Question 6.
Discuss the implications of not measuring shrinkage accurately in a large building project. Give at least three potential consequences.
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Think about how misjudged materials lead to bigger issues.

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