Concrete Cost Calculator
You can calculate the cost of C10, C15, C20, C25, C30, C35, C40 and other common mixes using the calculator. The calculator includes the mix proportions in tables.
Enter the mix proportions. In the example of the page we have calculated the cost of a C25 prescribed design mix. The proportions are 285kg cement, 775kg sand, 1070kg aggregate, 100 lites of water.
Enter the cost you buy the materials for and the calculator will give you the cost. We have added in the cost of the batching plant and the labour cost mixing the concrete. In our example the cost of the C25 concrete is €68.69 per m3
When comparing to buying ready-mix concrete there is a €21.31 saving. if you were buying 10,000 of concrete per year the saving would be €214,100 more than the cost of the batching plant.
Concrete Calculator for The Return on Investment
You can use the same spread sheet to calculate the return on investment for the purchase of the batching plant. In the example we have included the cost of a B1800 concrete batching plant, with a big bag silo and cement auger and some additional extras. Total investment including finance costs is €147,195.
The volume of concrete the owner uses in the example is 14,000m3 per year. We have selected the B1800 because it is the ideal machine for this volume. The B1800 can produce 20/30 m3 of concrete per hour.An average of 25m3/hr is 200m3 per day and 40,000 m3 per year giving room for expansion.
As you can see at the bottom of the calculation the B1800 is paid back just under six months or after mixing 6,907 m3 of concrete.