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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is specific gravity?
💡 Hint: Think about how it relates materials of different densities.
Question 2
Easy
What does water absorption measure?
💡 Hint: What could happen to concrete if aggregates absorb too much water?
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 apparent specific gravity formula?
💡 Hint: Remember which dimensions we leave out.
Question 2
Water absorption values in aggregates typically range from?
- 0.01 to 0.5%
- 0.1 to 2.0%
- 2.1 to 3.0%
💡 Hint: Think about the impact of higher absorption on durability.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An aggregate sample has a dry weight of 1.5 kg and weighs 1.7 kg when saturated. Calculate the water absorption and discuss its potential impact on concrete performance.
💡 Hint: Use the water absorption formula and think about long-term performance.
Question 2
If a bulk specific gravity of an aggregate is found to be 2.7 and apparent specific gravity is 2.5, what can you infer about the water-permeable voids?
💡 Hint: Look at the relationship between the two specific gravities.
Challenge and get performance evaluation