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VMA, or Voids in Mineral Aggregate, is calculated using the formula: VMA = (Gmm - Gse) / Gmm × 100, where Gmm is the specific gravity of the compacted asphalt mixture, and Gse is the specific gravity of the effective aggregate. VMA represents the volume of voids in the mineral aggregate and is crucial for determining the air voids and durability of the asphalt mix. A higher VMA indicates more void space, which can affect the performance of the asphalt. This parameter is essential for ensuring proper asphalt design and construction.

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4mo ago

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Calculate gallons of asphalt cement in a ton of asphalt?

The answer is, it depends. Different types of bituminous cement concrete (asphalt hot mix) use different percentages of asphalt cement. In Virginia, base mixes use at least 4.4% asphalt, while surface mixes are up to about 6%. Liquid asphalt is a little heavier than water; it weighs about 9.4#/gallon (depending on the source and grade). Here's the math: Base mix 2000#/ton x 4.4%/9.4#/gal. = 9.36 gal/ton surface mix 2000#/ton x 6%/9.4#/gal. = 12.76 gal/ton hope this answers the question.


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