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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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AnswerBot

1mo ago

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