Practice Water-Cement Ratio - 3.6 | 19. Objectives of Mix Design | Civil Engineering Materials, Testing & Evaluation - Vol 2
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Knowledge

3.6 - Water-Cement Ratio

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does the water-cement ratio indicate in concrete mix design?

💡 Hint: Consider how this ratio impacts concrete quality.

Question 2

Easy

Why is a lower w/c ratio generally better for concrete strength?

💡 Hint: Think about the relationship between water content and particle packing.

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 typical range for water-cement ratios in concrete mix design?

  • 0.2 to 0.4
  • 0.4 to 0.6
  • 0.6 to 0.8

💡 Hint: Consider the general guidelines for most concrete mixes.

Question 2

True or False: A lower water-cement ratio leads to lower strength.

  • True
  • False

💡 Hint: Think critically about how water impacts concrete density.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a concrete mix with a target strength of 25 MPa using a w/c ratio of 0.5. Calculate the necessary amounts of water and cement for 1m³, taking the specific gravity of cement as 3.15.

💡 Hint: Start with the desired strength to find the cement content.

Question 2

A construction site requires a concrete mix for a marine environment under severe conditions. What measures would you take regarding the water-cement ratio to ensure durability? What specific w/c ratio would you choose?

💡 Hint: Refer back to IS guidelines for water-cement ratios for severe exposure.

Challenge and get performance evaluation