4 1 part of cement and 4 part of sand.
Roof plastering ratio.
100 m 2 x 0 012m 1 2 m 3.
Calculate the area of plastering.
The ratio of secondary coat of plastering cement sand 1 3 with the thickness of 8mm.
Recommended plastering cement sand ratio are 1 3 for repair 1 4 for external wall ceiling roof concrete plastering 1 5 internal brick wall plastering have no fine sand 1 6 for internal brick wall plastering whick have fine sand general used in civil engineering building construction.
Plastering work ratio calculation.
The thickness of plaster is between 12 mm to 15 mm.
Area width x height 10 x 10 100m 2.
For a better understanding we are going to do this calculation for 100 sq m area.
Required volume of cement 1 4 x 1 55 void ratio x mortar volume 1 4 x 1 55 x 10 0 015 0 058 cum or 1 67 bags required sand volume 3 4 x 1 55 void ratio x mortar volume 3 4 x 1 55 x 10 0 015 0 174 m 3.
6 mm thickness of cement plaster and cement mortar 1 3 or 1 4 is recommended for cement plastering on rcc surfaces on the rcc walls fascia etc.
Plastering thickness 12 mm 12 1000 0 012m.
Ratio of cement and sand for plastering the ratio of cement and sand for plastering is given below.
Or as directed by the engineer.
For roof plaster mainly ratio we use 1.
Always use measuring box for measuring the quantity of sand and cement at the site.
To calculate the cement and sand for 100 m 2 plastering area in 1 6 ratio and 12 mm thickness.