1. What is the Asphalt Tonnage Calculator?

Definition: This calculator estimates the weight of asphalt needed for a paving project based on area, depth, and material density.

Purpose: It helps contractors and project planners determine how much asphalt to order for paving projects in Glenview and surrounding areas.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( T \) — Asphalt tonnage (tons)
• \( A \) — Area to be paved (square feet)
• \( D \) — Depth of asphalt (feet)
• \( \rho \) — Density of asphalt (pounds per cubic foot, typically 145 lb/ft³)

Explanation: The formula calculates volume in cubic feet, converts to weight in pounds, then converts to tons by dividing by 2000.

3. Importance of Accurate Tonnage Calculation

Details: Proper asphalt estimation ensures you order the right amount of material, avoiding costly overages or project delays from shortages.

4. Using the Calculator

Tips: Enter the area in square feet, depth in feet (e.g., 0.5 for 6 inches), and density (default 145 lb/ft³). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is the default density 145 lb/ft³?
A: This is the standard density for hot mix asphalt, but may vary slightly by mix design and temperature.

Q2: How do I convert inches to feet for depth?
A: Divide inches by 12 (e.g., 6 inches = 0.5 feet).

Q3: What area measurements does this calculator accept?
A: The calculator uses square feet. For rectangular areas, multiply length × width.

Q4: Does this include compaction factor?
A: The standard density accounts for normal compaction. For special cases, adjust density accordingly.

Q5: How much extra should I order?
A: Typically add 5-10% to account for waste, uneven surfaces, and compaction variations.