How to measure the volume of sand and cement for plastering of a wall

This construction video will teach you how to estimate plaster quantity for a wall. In this video the length of the wall is taken as 6 meter, the height is taken as 3 meter and thickness of the plaster is 12 mm that is equal to 0.012 meter.

In order to obtain the volume for plaster, the following formula should be used :-

Now, this wet volume of plaster should be converted to dry volume. So the formula is :-

Dry Volume = Wet Volume x 1.27 = 0.216 x 1.27 = 0.274 m3

Now, find out the ratio of cement and sand as 1:4, if it summed up it will be = 5

Therefore, volume of cement = 1/5 x 0.274 m3 = 0.054 m3

Now, this volume of cement should be converted into the bags of cements required for plastering above mentioned wall.

0.054/0.035 = 1.56 (require no. of bags)

Now, you have to find out how much kg of cement is required for the plastering work.

So, you have to initially find out the density of cement. It will be 1440 kg/m3

Therefore, weight of cement = Volume of cement x Density of cement = 0.054 m3 x 1440 kg/m3 = 77.76 = 78 Kg (rounded off).

Now, find the volume of sand = ratio of sand / sum up ratio x dry volume = 4/5 x 0.274 = 0.21 m3

How to measure the volume of sand and cement for plastering of a wall