How to Use the Concrete Material Calculator

1. Volume Calculation Method:

   • Direct Volume: Enter the volume directly in cubic meters.
   • As per Area (L × B × H): Enter the length, width, and height in meters to calculate the volume.

2. Enter the Volume or Dimensions:

   • If you selected “Direct Volume”, enter the volume in cubic meters in the provided input field.
   • If you selected “As per Area (L × B × H)”, enter the length, width, and height in meters.

3. Wet Volume Factor:

   • Enter the wet volume factor. The default value is 1.54.

4. Mix Ratio Selection:

   • Predefined Mix Ratio: Select a predefined mix ratio from the dropdown.
   • Custom Mix Ratio: Enter a custom mix ratio in the format 1:1.5:3.

5. Result Unit for Sand and Aggregate:

   • Select the unit for sand and aggregate: Cubic Meters (m³) or Tons.

6. Calculate:

   • Click the “Calculate” button to see the results.

Example Calculation

Let’s say we want to calculate the materials for a concrete slab with the following specifications:

• Length: 5 meters
• Width: 4 meters
• Height: 0.2 meters
• Wet Volume Factor: 1.54
• Mix Ratio: M20 (1:1.5:3)
• Result Unit for Sand and Aggregate: Cubic Meters (m³)

Steps:

1. Select “As per Area (L × B × H)” from the Volume Calculation Method dropdown.
2. Enter the dimensions:
   • Length: 5 meters
   • Width: 4 meters
   • Height: 0.2 meters
3. Wet Volume Factor: Leave it as 1.54.
4. Mix Ratio Selection: Select M20 (1:1.5:3) from the predefined ratios.
5. Result Unit: Select Cubic Meters (m³).

Calculation:

1. Calculate Volume:

   • Volume = Length × Width × Height
   • Volume = 5 m × 4 m × 0.2 m = 4 m³

2. Calculate Wet Volume:

   • Wet Volume = Volume × Wet Volume Factor
   • Wet Volume = 4 m³ × 1.54 = 6.16 m³

3. Calculate Material Quantities using the mix ratio (1:1.5:3):

   • Total parts = 1 + 1.5 + 3 = 5.5 parts
   • Cement: (6.16 m³ × 1 part) / 5.5 parts = 1.12 m³
   • Sand: (6.16 m³ × 1.5 parts) / 5.5 parts = 1.68 m³
   • Aggregate: (6.16 m³ × 3 parts) / 5.5 parts = 3.36 m³

4. Convert Cement to Bags:

   • Cement Bags = Cement Volume / 0.0347
   • Cement Bags = 1.12 m³ / 0.0347 = 32.28 bags

Results:

• Cement: 32.28 bags
• Sand: 1.68 m³
• Aggregate: 3.36 m³
• Water: Cement Volume × 0.5 × 1000 = 1.12 m³ × 0.5 × 1000 = 560 liters