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Crusher Run Calculation:
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Crusher run is a type of gravel that consists of angular crushed rock, ranging in size from fine dust to 3/4 inch. It's commonly used as a base material for driveways, walkways, and other construction projects due to its excellent compaction properties.
The calculator uses the formula:
Where:
Explanation: This formula calculates the total weight of crusher run needed for your project by multiplying the area to be covered by the desired depth and the material's density.
Details: Accurate estimation of crusher run is crucial for project planning and budgeting. Too little material may delay your project, while too much results in wasted resources and additional costs.
Tips: Measure the area accurately in square meters, determine the appropriate depth for your application (typically 0.1-0.2m for driveways), and use the standard density of 1.6-1.8 tons/m³ unless you have specific material information.
Q1: What is the typical density of crusher run?
A: Standard crusher run density ranges from 1.6 to 1.8 tons per cubic meter, depending on the specific composition and compaction.
Q2: How deep should I lay crusher run for a driveway?
A: For residential driveways, a depth of 10-15cm (0.1-0.15m) is typically recommended after compaction.
Q3: Can I use this calculator for other gravel types?
A: Yes, but you'll need to adjust the density value according to the specific material you're using.
Q4: How do I account for compaction in my calculations?
A: Crusher run typically compacts to about 80-85% of its loose volume. Add 15-20% to your calculated amount to account for compaction.
Q5: Should I order extra material?
A: It's recommended to order 5-10% more than calculated to account for settling, compaction, and potential measurement inaccuracies.