Practice Specific Gravity and Water Absorption (IS: 2386 Part III) - 3.5.2 | 3. Aggregates for Concrete | Concrete Technology
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3.5.2 - Specific Gravity and Water Absorption (IS: 2386 Part III)

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is specific gravity?

💡 Hint: Think about how we compare the density of different materials to water.

Question 2

Easy

Name the two types of specific gravity for aggregates.

💡 Hint: Consider which aspect of the aggregate each type measures.

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 does bulk specific gravity include in its measurement?

  • Only the solid material
  • Both solid material and its pores
  • Only the voids

💡 Hint: Think about how this measure affects the concrete composition.

Question 2

True or False: Water absorption has no significant impact on the water-cement ratio.

  • True
  • False

💡 Hint: Recall the importance of maintaining the correct water level in concrete mixes.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A concrete mix is designed using aggregates with a bulk specific gravity of 2.5 and a water absorption rate of 3%. If the desired water-cement ratio is 0.5, how would the water addition change based on the absorption characteristics of these aggregates?

💡 Hint: Consider how the water needed for absorption affects the mix design.

Question 2

You have two aggregates: one with a bulk specific gravity of 2.65 and water absorption of 1.5%, and another with a bulk specific gravity of 2.45 and water absorption of 4%. Which aggregate should be preferred for high-quality concrete and why?

💡 Hint: Think about how the characteristics of each aggregate influence the final concrete performance.

Challenge and get performance evaluation