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2 cards from this section. Quick, good the night before a test.
What is bulk density?
Think about how we measure weight in comparison to volume.
Why is voids content significant?
Consider what happens to empty spaces in a mixture.
What does bulk density refer to?
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.
Think about what voids represent.
A batch of aggregate weighs 2400 kg and fills 1.2 m³. Calculate the bulk density and discuss its implications for concrete mix design.
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?
Consider the role of voids in determining how much paste is required.
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