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Asphalt Calculator by Square Feet

Asphalt Tonnage Formula:

\[ T = \frac{A \times D \times \rho}{2000} \]

ft²
ft
lb/ft³

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1. What is an Asphalt Calculator by Square Feet?

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.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ T = \frac{A \times D \times \rho}{2000} \]

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.

3. Importance of Asphalt Calculation

Details: Accurate asphalt tonnage estimation ensures proper project planning, material ordering, and cost control for paving projects.

4. Using the Calculator

Tips: Enter the area in square feet, depth in feet, and density (default 145 lb/ft³). All values must be > 0.

5. Frequently Asked Questions (FAQ)

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.

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