Formula for calculation

To calculate the amount of concrete required for pouring columns, the following formula is used:

1. Calculate the cross-sectional area of the column.:

• Cross-sectional area of column A = width W (cm) × length L (cm)
• Since we want the result in cubic meters, we need to convert from square centimeters to square meters by multiplying by 0.0001.
• Therefore, the cross-sectional area of column A (square meter) = W × L × 0.0001.
•  

2. Calculate the volume of concrete required.:

• Volume of concrete required V (cubic meters) = cross-sectional area of column A (square meters) × height H (meters) × number of columns N
• V = W × L × 0.0001 × H × N
• •  

3. Calculate the amount of concrete to be ordered.:

• Quantity of concrete to be ordered = Volume of concrete required V × (1 + percentage of reserve concrete / 100)
• To obtain the exact amount of concrete to order, the value obtained is rounded up to an integer.
• • •  

Calculation example

Suppose that:

• Width of the pillar = 30 centimeters
• Long side of the pole = 30 centimeters
• Pole height = 3 meters
• Number of poles = 4 trees
• Percentage of concrete reserve = 10%

The calculation will be as follows:

1. Calculate the cross-sectional area of the column.:

• A =30 × 30 × 0.0001 = 0.09 square meters

2. Calculate the volume of concrete required.:

• V= 0.09 × 3 × 4 = 1.08 cubic meters

3. Calculate the amount of concrete to be ordered.:

• Quantity of concrete to be ordered = 1.08 × (1+10/100) = 1.08 × 1.1 = 1.188 cubic meters
• Round up to a whole number. 2 cubic meters
• • •  

The results displayed will be:

• Amount of concrete required: 1.08 Cubic meter (cubic metre)
• Quantity of concrete to be ordered: 2 Cubic meter (cubic metre)