How many bags of cement should make one cubic meter

Different concrete mixes, such as 1:2:4 (M15 grade) or 1:1.5:3 (M20 grade), use varying proportions of cement. A richer mix (more cement) will require more bags.

For a general-purpose concrete mix like 1:2:4 (cement:sand:aggregate), which is common for non-structural elements, and assuming a standard cement bag of $50\, \text{kg}$.

For a 1:2:4 mix, approximately $300\, \text{kg}$ to $350\, \text{kg}$ of cement is typically needed to produce $1\, \text{m}^3$ of compacted concrete. Let's use an average value of $325\, \text{kg}$.

To find the number of bags, divide the total mass of cement needed by the mass of one bag:

Therefore, for a 1:2:4 concrete mix, you would need approximately $\boxed{\text{6.5 bags}}$ of $50\, \text{kg}$ cement to make one cubic meter of concrete. This is an approximation, and actual quantities may vary based on material properties and specific mix design.