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What is Hot Mix Asphalt (HMA) pavement?

April 26, 2017HMA hot mix asphalt pavement

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What is Hot Mix Asphalt (HMA) pavement?

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Asphalt pavement refers to any paved road surfaced with asphalt. Hot Mix Asphalt is a combination of approximately 95% stone, sand, or gravel bound together by asphalt cement, a product of crude oil. Asphalt cement is heated aggregate, combined, and mixed with the aggregate at an HMA facility. The resulting Hot Mix Asphalt is loaded into trucks for transport to the paving site. The trucks dump the Hot Mix Asphalt into hoppers located at the front of paving machines. The asphalt is placed, then compacted using a heavy roller, which is driven over the asphalt.