Quantities of Materials Per Cubic Meter of Concrete Mix ...
Being a rule of the thumb calculating the amount of cement per cub/meter With a starting point of 20 mpa – being F16 Calculated as follows: 16 x 20 = 320 kg cement for 1 cub meter of concrete by 640 kg of sand, and 1200 kg aggregate Now for every 5 mpa increase in strength we drop the F factor by one So for 25 mpa the formula becomes: