Practice Estimation of Water Content - 6 | 19. Objectives of Mix Design | Civil Engineering Materials, Testing & Evaluation - Vol 2
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Knowledge

6 - Estimation of Water Content

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is workability in concrete?

💡 Hint: Think about what aspects of concrete placement matter for its usability.

Question 2

Easy

Name two shapes of aggregates and their impact on water content.

💡 Hint: Consider how the shape affects packing and flow of the mix.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the primary purpose of estimating water content in concrete mix design?

  • To increase aggregate size
  • To ensure proper workability
  • To reduce cement content

💡 Hint: Think about the role of water in the fluidity of concrete.

Question 2

True or False: Angular aggregates require less water than rounded aggregates.

  • True
  • False

💡 Hint: Consider how the shape contributes to the need for extra water.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a concrete mix for a desired slump of 80 mm using angular aggregates with an existing base water content of 200 kg/m³. Calculate the new water content.

💡 Hint: Break the problem into parts by first calculating the slump changes.

Question 2

You're tasked with mixing concrete that requires superplasticizers. If the original estimated water content was 250 kg, how do you calculate the revised content?

💡 Hint: Focus on the adjustment percentage for superplasticizers and apply it accurately.

Challenge and get performance evaluation