5.4.9 - Bulk Density and Voids
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Practice Questions
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What is bulk density?
💡 Hint: Think about how we measure weight in comparison to volume.
Why is voids content significant?
💡 Hint: Consider what happens to empty spaces in a mixture.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does bulk density refer to?
💡 Hint: It’s directly related to the aggregates, not cement or water.
True or False: Higher voids content means less cement paste needed in the mix.
💡 Hint: Think about what voids represent.
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Challenge Problems
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A batch of aggregate weighs 2400 kg and fills 1.2 m³. Calculate the bulk density and discuss its implications for concrete mix design.
💡 Hint: Use the density formula and think about how density affects overall strength.
In an aggregate mix, the void content is tested to be 25%. If the total volume of the mix is 9 m³, how much volume of paste will be needed?
💡 Hint: Consider the role of voids in determining how much paste is required.
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