Practice Accelerating Admixtures (4.1.3) - Chemical Admixtures

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6 sample questions

Question 1.
What is the primary purpose of accelerating admixtures?
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Think about the conditions where these admixtures would be useful.
Question 2.
Name one common accelerating admixture.
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One of them is often avoided due to corrosion risks.
3Question 3.
What is the main function of accelerating admixtures in concrete?
- Increase water content
- Reduce setting time
- Enhance color
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Consider why you would want quicker setting.
4Question 4.
True or False: Calcium chloride is safe to use with reinforced concrete.
- True
- False
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Think about the effects it has on steel.
Question 5.
Describe a scenario where using calcium chloride as an accelerator could lead to issues. What alternative would you recommend?
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Consider environmental conditions that could affect the concrete.
Question 6.
You have a project scheduled during winter. Discuss how you would plan the concrete work with respect to the use of accelerating admixtures.
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Think about the temperature variations and schedule risks involved.

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