Asphalt Tonnage Formula:
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Definition: This calculator estimates the tonnage of asphalt needed based on the area in square feet, depth, and density.
Purpose: It helps construction professionals and contractors determine how much asphalt is required for paving projects.
The calculator uses the formula:
Where:
Explanation: The area is multiplied by depth to get volume, then multiplied by density to get weight in pounds, which is converted to tons by dividing by 2000.
Details: Accurate asphalt tonnage estimation ensures proper project planning, material ordering, and cost control for paving projects.
Tips: Enter the area in square feet, depth in feet, and density (default 145 lb/ft³). All values must be > 0.
Q1: What's the typical density for asphalt?
A: Hot mix asphalt typically has a density of 145 lb/ft³, but this can vary from 140-150 lb/ft³ depending on mix design.
Q2: How do I convert inches to feet for depth?
A: Divide inches by 12 (e.g., 3 inches = 0.25 feet).
Q3: Why divide by 2000 in the formula?
A: There are 2000 pounds in 1 ton, so we divide by 2000 to convert from pounds to tons.
Q4: Should I include compaction factor?
A: The calculated tonnage accounts for compacted asphalt. No additional factor is needed.
Q5: How much extra should I order?
A: Consider ordering 5-10% extra to account for waste, uneven surfaces, and compaction variations.