1. What is Sharp Sand?

Sharp sand, also known as concrete sand or grit sand, is a coarse sand used in construction for making concrete and mortar. It's commonly used for paving, laying slabs, and other building projects.

2. How Does the Calculator Work?

The calculator uses the standard formula:

Where:

• \( Area \) — The surface area to be covered (in square meters)
• \( Depth \) — The depth of sand required (in meters)
• \( 1600 \) — The standard density of sharp sand (kg/m³)

Explanation: The calculation determines the weight of sand needed to cover a specific area to a certain depth.

3. Importance of Accurate Calculation

Details: Accurate calculation helps ensure you purchase the right amount of sand, avoiding waste or project delays from insufficient materials.

4. Using the Calculator

Tips: Measure your area accurately in square meters. Typical depth for paving is 0.05m (50mm). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How much sharp sand do I need for a patio?
A: For a 10m² patio with 50mm depth: 10 × 0.05 × 1600 = 800kg (about 20-25 bags).

Q2: What's the difference between sharp sand and building sand?
A: Sharp sand has larger, angular grains for better drainage and strength in concrete, while building sand is finer for bricklaying.

Q3: Can I use this for bulk bag calculations?
A: Yes, standard bulk bags hold about 850kg, so divide your total by 850 to get number of bulk bags needed.

Q4: Is the density always 1600 kg/m³?
A: This is standard for dry sharp sand. Damp sand may be slightly denser (up to 1800 kg/m³).

Q5: How do I convert kg to volume?
A: Divide kg by density: 1000kg ÷ 1600kg/m³ = 0.625m³ (625 liters).