1. What is Polymeric Sand?

Polymeric sand is a mixture of fine sands combined with additives that form a binding agent when activated with water. It's used to fill the joints between pavers, creating a durable, weed-resistant surface that prevents ants and erosion.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( \text{Area} \) — Total area of paved surface in square meters
• \( \text{Joint width} \) — Typically between 3-10mm (0.003-0.01m)
• \( \text{Joint depth} \) — Typically between 25-50mm (0.025-0.05m)
• \( \text{Density} \) — Standard polymeric sand density is 1600 kg/m³

Explanation: The formula calculates the volume of all joints combined and multiplies by the sand density to get the weight needed.

3. Importance of Proper Sand Calculation

Details: Accurate calculation ensures you purchase the right amount of sand - too little means incomplete coverage, while too much leads to waste and extra cost. Proper joint filling prevents weed growth and paver movement.

4. Using the Calculator

Tips: Measure your paved area accurately. For joint width and depth, use manufacturer recommendations or typical values (3-10mm width, 25-50mm depth). The standard density of 1600 kg/m³ works for most polymeric sands.

5. Frequently Asked Questions (FAQ)

Q1: What if my joints are different widths?
A: Use an average width or calculate different areas separately if there are significant variations.

Q2: How much extra should I buy?
A: It's recommended to purchase 10-15% more than calculated to account for settling and waste.

Q3: Can I use this for irregularly shaped areas?
A: Yes, as long as you can calculate or estimate the total paved area.

Q4: Does joint pattern affect the calculation?
A: The pattern doesn't matter as long as your area measurement is accurate and joint sizes are consistent.

Q5: What about very large or very small joints?
A: For joints outside typical ranges, consult your polymeric sand manufacturer for specific recommendations.