Chargement…
Chargement…
by Dakhla Aménagement Team
Accurately estimating the quantity of cement needed is a crucial step to optimize costs and avoid waste on site. The calculation depends on the type of structure, the concrete or mortar dosage, and the dimensions of the element to be produced. For standard reinforced concrete, the standard dosage is 350 kg of cement per cubic meter of concrete.
For a reinforced concrete slab 10 cm thick and 50 m² in surface area, the volume of concrete needed is 5 m³. With a dosage of 350 kg/m³, 1,750 kg of cement is required, or about 35 bags of 50 kg. For foundations, the dosage can increase to 400 kg/m³, which proportionally increases the amount of cement required.
For masonry walls, the calculation is based on the number of concrete blocks and the jointing mortar. Count approximately 25 kg of cement per m² of wall in 20 cm blocks. For plastering, plan about 15 kg of cement per m² for a 1.5 cm thickness. These ratios allow for a quick estimate for quantitative quotes.
It is recommended to provide an additional 5 to 10% margin to compensate for losses and dosage inaccuracies. Dakhla Aménagement offers a technical advisory service to help you precisely calculate your cement needs according to your project specifications.
Compute the volume in m³: length × width × thickness of the element to be cast.
Use 350 kg/m³ for standard reinforced concrete, 400 kg/m³ for high strength, 300 kg/m³ for foundations.
Multiply volume by dosage: Quantity (kg) = Volume (m³) × Dosage (kg/m³).
Divide by 1,000 to get tonnes. Add a 5-10% margin for losses.
Order the quantity rounded up to the next tonne from Dakhla Aménagement.
Our free calculator gives you the exact cement quantity, cost estimate and suggested packaging.
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