Calculate Hot Mix Asphalt (HMA) tonnage, square yards, and truckloads with temperature loss and density estimates.
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A Hot Mix Asphalt (HMA) calculator computes the required mass in US tons for standard hot-poured flexible pavement. HMA consists of 95% high-grade crushed aggregate blended with 5% liquid asphalt petroleum binder, heated to 300°F.
\text{Tons} = \frac{\text{Length (ft)} \times \text{Width (ft)}}{9} \times \text{Thickness (in)} \times \frac{112}{2000} \times 1.05Hot mix asphalt compacts to 112 lbs per square yard per inch. Multiplying by 1.05 provides 5% job site safety allowance.
Scenario: Paving a community sports court: 80 ft by 45 ft with 2 inches of fine-graded hot mix surface asphalt.
Area: 80 × 45 = 3,600 sq ft (400 sq yds).
Weight: 400 sq yds × 2 in × 112 lbs = 89,600 lbs.
Tonnage: (89,600 ÷ 2000) × 1.05 = 47.04 tons.
Hot Mix Asphalt (HMA) is delivered hot from a commercial plant and compacted while molten to form permanent roads and driveways. Cold patch is pre-bagged emergency repair material for potholes that cures by solvent evaporation.
HMA contains 5% liquid bitumen, a heavy viscous oil byproduct of crude petroleum refining that acts as the waterproof glue binding aggregates together.
Loose hot mix asphalt compacts by approximately 20% to 25% under steel drum rollers (e.g. 2.5 inches loose rolls down to 2.0 inches compacted).
Paving in cold weather (<40°F) is discouraged because the thin asphalt layer cools before the roller can achieve required density, leading to premature raveling.
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= 14.81 Metric Tonnes (7.72 cu yds)