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2 cards from this section. Quick, good the night before a test.
Define Theoretical Specific Gravity (Gt).
Consider what elements are included in this measurement.
What does Vb represent?
Think about the materials involved in the mix.
What does the theoretical specific gravity (Gt) measure?
Focus on what 'theoretical' refers to.
True or False: The bulk specific gravity (Gm) includes air voids in its measurement.
Think about how density is impacted by air.
Calculate the Gt, Gm, and Vv for a specimen with the following data: W1=500g, G1=2.5, W2=300g, G2=2.6, Wb=200g, Gb=1.0, with the specimen weight in air as 1500g and in water as 1200g.
Verify the input values and calculations step by step.
Discuss how increasing the percent air voids (Vv) can affect the long-term performance of asphalt mixes.
Think about what happens when there are too many air pockets in materials exposed to heavy loads.
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