1. What is an Asphalt Demolition Calculator?

Definition: This calculator estimates the weight of asphalt to be removed during demolition projects based on area dimensions and material density.

Purpose: It helps demolition contractors and construction professionals plan for waste removal and recycling of asphalt materials.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( T \) — Tonnage of asphalt (tons)
• \( L \) — Length of area (feet)
• \( W \) — Width of area (feet)
• \( D \) — Depth of asphalt (feet)
• \( \rho \) — Density of asphalt (pounds per cubic foot, typically 145)

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

3. Importance of Asphalt Tonnage Calculation

Details: Accurate tonnage estimates are crucial for proper disposal planning, recycling logistics, and project cost estimation.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why is the density typically 145 lb/ft³?
A: This is the standard density for hot mix asphalt, though it 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., 6 inches = 0.5 feet).

Q3: Does this include subbase material?
A: No, this calculates only the asphalt layer. Add separate calculations for any base materials to be removed.

Q4: How accurate is this estimate?
A: It provides a theoretical estimate. Actual tonnage may vary due to compaction, voids, and material condition.

Q5: Should I add a waste factor?
A: Yes, consider adding 5-10% to account for irregularities and material loss during demolition.