Practice Modern Practices To Improve Workability (7.6) - Fresh Concrete – Properties and Workability Tests (IS Standards)

Practice: Modern Practices to Improve Workability

Lesson 7.6Fresh Concrete – Properties and Workability Tests (IS Standards)

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10 questions

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6 sample questions

Question 1.
What is a plasticizer?
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Think about the role of plastics in keeping things flexible.
Question 2.
Name one mineral admixture.
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This material often comes from power plants.
3Question 3.
What is the purpose of plasticizers in concrete?
- To increase water content
- To improve workability
- To speed up setting time
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Think about how they affect mixing.
4Question 4.
True or False: Superplasticizers can increase the flow ability of concrete significantly.
- True
- False
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Remember their extreme enhancement capabilities.
Question 5.
You are tasked with a project in a hot climate where high-performance concrete is needed. Describe your approach concerning chemical and mineral admixtures you would select to ensure workability.
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Consider the effects of temperature on concrete and which admixtures would help.
Question 6.
Discuss how you would balance the use of chemical admixtures without compromising strength in a concrete mix required for heavy-load beams.
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Think about the relationship between workability and strength and how admixtures can mediate this.

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