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What is the minimum thickness of the hot-mix asphalt (HMA) pavement required underneath the whitetopping?

April 26, 2017Asphalt HMA hot-mix minimum pavement thickness underneath whitetopping

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What is the minimum thickness of the hot-mix asphalt (HMA) pavement required underneath the whitetopping?

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Whitetopping is commonly placed where a substantial thickness of HMA exists, such as a full-depth asphalt pavement. ACPA currently recommends that the minimum asphalt thickness be at least 3 in. (75 mm) after milling.