Construction Cost Estimating

      

Estimating the Quantity of Materials for Plaster

The term plastering is utilized to portray the slender mortar covering that is applied on the outside of the divider and roof. The plastering eliminates the lopsidedness of the surface and once in a while used to create improving impacts. Today in this article we will figure out how to ascertain quantity of material for plaster.

Significant Points for this Estimation that you have to remember:

• Thickness of Cement = 1440 kg/m3
• Thickness of Sand = 1450 – 1500 kg/m3
• Thickness of Aggregate = 1450 – 1550 kg/m3
• Quantity or Weight of Cement in 1 Bag = 50 KG
• The volume of 1 Bag Cement in Cum = 0.03472 cubic meter
• The volume of 1 Bag Cement in Cft = 1.226 cubic feet
• Quantities of Cement Bags in 1 cum = 28.8 nos.
• What number of Cft in 1 Cum = 35.31 cft

The quantity of plaster estimation is exceptionally simple simply need your focus. The accompanying focuses you generally recall at the site when you have to figure the plaster quantity implies (water, cement and sand).

• For divider plaster by and large proportion we use 1: 6 (1 piece of cement and 6 piece of sand).
• For Roof plaster predominantly proportion we use 1: 4 (1 piece of cement and 4 piece of sand).
• The thickness of plaster is between 12 mm to 15 mm.

Try to utilize Good nature of cement (Different evaluations of cement) just as great quality sand. It’s a good idea to use estimating box for estimating the quantity of sand and cement at the site. For your better understanding, how about we unravel this model and discover the outcomes.

Assuming thickness of plastering,

• Inside = 12 mm
• Outside = 20 mm
• Ceiling = 6 mm

FOR 12 mm PLASTERING

Let us consider 100 sq. metre of wall.

• Volume of plastering = 100 x 0.012 = 1.2 m3
• Adding 30% to fill up the joints = 1.2 + 1.2 x (30/100) = 1.56 m3
• Increasing 20% for dry volume = 1.56 + 1.56 x (20/100) = 1.87 m3
(approx 2 m3)

For 1:6 cement mortar

• Volume of cement = 2 / (1+6) = 0.29 m3
• Volume of sand = 2 – 0.29 = 1.71 m3
• No of bags for cement = 0.29 / 0.0347 (Volume of 1 bag of cement = 0.0347 m3) = 8.36
(Approx 9 bags considering waste)

For 1:5 cement mortar

• Volume of cement = 2 / (1+5) = 0.33 m3
• Volume of sand = 2 – 0.33 = 1.67 m3
• No of bags for cement = 0.33 / 0.0347 = 9.51
(Approx 10 bags)

Similarly,

FOR 20 mm PLASTERING

• Volume of plastering = 100 x 0.02 = 2 m3
• Adding 20% to fill up the joints = 2 + 2 x (20/100) = 2.4 m3
• Increasing 20% for dry volume = 2.4+ 2.4 x (20/100)
• (30% can also be used) = 2.88 m3
(approx 3 m3)

For 1:6 cement mortar

• Volume of cement = 3 / (1+6) = 0.43 m3
• Volume of sand = 3 – 0.43 = 2.57 m3
• No of bags for cement = 0.43 / 0.0347 = 12.4
(Approx 13 bags considering waste)

For 1:5 cement mortar

• Volume of cement = 3 / (1+5) = 0.5 m3
• Volume of sand = 3 – 0.5 = 2.5 m3
• No of bags for cement = 0.5 / 0.0347 = 14.4
(Approx 15 bags considering waste)

FOR 6 mm PLASTERING

• Volume of plastering = 100 x 0.006 = 0.6 m3
• Adding 20% to fill up the joints = 0.6 + 0.6 x (20/100) = 0.72 m3
• Increasing 20% for dry volume = 0.72 + 0.72 x (20/100) = 0.86 m3
(Approx 1 m3)

For 1:5 cement mortar

• Volume of cement = 1 / (1+5) = 0.17 m3
• Volume of sand = 1 – 0.17 = 0.83 m3
• No of bags for cement = 0.17 / 0.0347 = 4.89
(Approx 5 bags)

For 1:4 cement mortar

• Volume of cement = 1 / (1+4) = 0.2 m3
• Volume of sand = 1 – 0.2 = 0.8 m3
• No of bags for cement = 0.2 / 0.0347 = 5.76
(Approx 6 bags)

That’s it, you got the numbers for starting the build!

Estimating the Quantity of Materials for Plaster