Since concrete is the most used building material, cement which acts as a binder is one of the most important building elements which has cost implications if not well optimized. You may want to do a check of the cement quantity for your building project. Kindly follow the process below in this case:
Assumptions:
Slab area= 180 square meters
Slab thickness= 150mm (6 inches)
Lenght of beam = 130 meters
Floor slab cement calculation
Number of bags of cement required= Volume of concrete x number of bags per cubic meters
Number of bags per cubic meter varies between 4 and 7 depending on the target mix strength
1:2:4 mix= approx 7 bags of cement per cubic meter
1:3:6 mix= approx 4 bags of cement per cubic meter
5 bags of cement per cubic meter is optimal considering cost and quality
Volume of slab= Slab Area x Slab thickness
Slab area= 180 sq.m
Thickness used= 150mm
Volume of slab= 180 x .15m
27m3
Beams and slabs are mostly casted together, hence:
Volume of beams= Total length of beams x width of beam x Height of beam
=130m x 0.225m x 0.3m= 8.8 m3
Total volume= 35.8 cubic meters
Cement bags required= 35.8 cubic meters x 5 bags per cubic meter
= 179 bags of cement
This is so difficult
Dear Eugine, it’s not difficult once you can derive the volume and multiply by the required factor.