This article is about how to calculate the quantity of cement, sand, and aggregate in the concrete columns. after reading this article you will be able to find out the materials in slab, beam and also for Concrete road. We used here the same formula for finding out the quantity of beam and slab etc. But there just change the shape and dimension, otherwise, it is the same thing.
Given Data for Square column:
this is the top and front section of the column.
Size of column = 300 mm x 300 mm
Height of column = 3 meter.
In this column, we will use the M20 grade of concrete (which Ratio is 1:1.5:3) sum of ratio become = 5.5
where: 1 is Cement, 1.3 is Sand, and 3 is aggregate. ( M20 grade of concrete compressive strength is 20N/mm2 after 28 days).
Now we have to find out Volume of Column = V = L x L x H = 300 x 300 x 3000 = 0.27m3
Remember the above volume of column is Wet volume now we will convert it to dry volume which can be obtained by multiplying 1.54.
Dry volume = wet volume x 1.54 = 0.4158 m3
Now from this dry volume, we can find out the volume of cement, sand, and aggregate in the concrete column.
1- Volume of cement = V = 1/5.5 x dry volume
= V = 1/5.5 x 0.4158
= V = 0.0756 m3
Now convert the cment volume to bags.
Volume of cement / Volume of one cement bag in m3
Note : Volume of Cement bag = 0.0347
0.0756 / 0.0347 = 2.17 bags of cement are required for above column.
2- Volume of Sand = V = 1.5/5.5 x dry volume
= V = 1.5/5.5 x 0.4158
= V = 0.1134 m3
3- Volume of Aggregate = V = 3/5.5 x dry volume
= V = 3/5.5 x 0.4158
= V = 0.2268 m3
For more information watch this video
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