# How To Calculate Quantity Of Cement In Plaster?

Calculation of quantity of material for 12 mm thick plaster of ratio 1: 6 (1 Cement:6 Sand) in the wall for 100 Sqm

1. Quantity of Cement = 2/(1+6) × 1 (1 Ratio of cement)
2. In Kg = 0.30 × 1440 (Density of cement = 1440 kg/m3)
3. Quantity of Sand = 2/(1+6) × 6 (6 Ratio of sand)
4. In Cubic Feet = 63.558 cft (1 Cum = 35.31 cft)

Meer items

## How much cement is in plaster?

The density of cement is 1440 kg per m. There are 0.08 cement bag is required for the plastering work of one square metre.

### How many bags of cement do I need for plaster?

There are several things upon which the requirement of cement bags differ like structure, thickness, ratio of materials that are to be used in the construction, type of cement. But without knowing how many cement bags required for 1500 sq ft house, you won’t be able to place your order.

• Thumb rule for cement in rcc concrete is 0.301 cement bags/sq ft
• Thumb Rule for cement bags in surface ground is 0.089 cement bags/sq ft
• Thumb Rule for cement bags in external wall brickwork is 1.26 cement bags/m3 of brickwork of 9 inch
• Thumb Rule for cement bags in internal wall brickwork is 1.28 cement bags/m3 of brickwork of 4.5 inch
• Thumb Rule for cement bags for external plastering is 0.170 cement bags/ sq ft plastering
• Thumb Rule for cement bags for internal plastering is 0.008 cement bags/ sq ft plastering
• Thumb Rule for cement bags for ceiling plastering is 0.005 cement bags/ sq ft plastering

Now if you are planning to use cement bags for 1500 sq feet house then to know how many bags you need to buy, follow this calculation:

Cement required by the external brick wall: External brick wall length =2(50+30) = 160 ft

Height of brick wall 10 feet Height of brick wall above roof slab = 3feet Depth of brick wall = 2 feet Total Height= 15feet Area of external brick wall= 160* 15= 2400 sq ft Volume = 2400 sq ft* 9 inch = 1800 cu ft Volume = 1800/ 35.3147 = 51m3 Volume of brickwork = 51m3 Now let’s observe the above mentioned rule for wall brickwork: Thumb Rule for cement bags in external wall brickwork is 1.26 cement bags/m3 of brickwork of 9 inch(cement:sand=1:6) No of cement bags= 51*1.26= 64bags

Cement required by internal brick wall

Brick wall length = 50+30+30+30 =140 ft Height of Brick wall =10 feet Depth of brick wall = 2 feet Total height = 12 feet Area of external brick wall = 140* 12= 1680 sq ft Volume = 1680 sq ft * 4.5 inch= 630 cu ft Volume = 630/35.3147 =17.84m3 Volume of brick work = 17.84 Thumb Rule for cement bags in internal wall brickwork is 1.28 cement bags/m3 of brickwork of 4.5 inch(cemet: sand= 1:4) No of cement bags = 17.84* 1.28= 23 So the total number of bags becomes 64+23= 87 This is the approx amount of cement bags you will be needing.

## What is quantity of cement and sand in plaster?

Cement:Sand = 1:5, 1 part of cement and 5 parts of sand in a mortar ). The overall thickness of plastering should be minimum 20mm including two coats.

### What is the right mix for plaster?

Measure out 2 equal parts of plaster powder to 1 equal part of water by volume. Pour the water into a mixing container and then slowly add plaster powder. Allow it to soak for 2 minutes. Now mix the plaster and water until the mixture is creamy (approx.

## What is the coverage of a 25kg bag of plaster?

Thistle Magnetic Plaster by British Gypsum – 25kg bag (5sqm coverage)

• Magnets attract to it like a steel surface.
• Each 25kg bag will cover 5sqm at a thickness of 3mm.
• Minimum of 3mm should be applied, sets in 2-3 hours.
• Applies the same as regular plaster.
• Sets with a smooth professional finish that blends into existing walls.
• Best used with and,

Magnetic plaster is the latest innovation in interior design, providing ultimate flexibility to create interactive spaces at home or in the office. It’s perfect for creating a picture gallery without using pins or nails or for organising the home office without the confines of a noticeboard.

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On a grander scale it can help teams of designers and architects collaborate and present their work to their colleagues and clients. Magnetic plaster should be applied in the same way as regular plaster at least 3mm thick. Once set, it provides a surface that magnets will attract to, just like steel. The ideal magnets to use depends on what you want to hang on your magnetic wall.

If you are looking for technical data such as performance and application and installation instructions, please, Each bag contains application instructions on the reverse. FREQUENTLY ASKED QUESTIONS Which magnets should I use with magnetic plaster? This depends on what it is you are trying to hold.

If you are looking to hang something lightweight like photos or posters, then our range of are ideal, or small can be stuck to the back of the item you are looking to hang. If you are looking to hold picture frames or similar items then our or should be sufficient. For heavier items, our are the best solution as the rubber increases the slide resistance of the magnet.

If the item you want to hang is sliding down the wall then adding cut pieces of our high-power flexible magnetic sheet will increase the friction between the item and the wall. We’ve put together a handy, which is great for getting you started. If you are planning to apply magnetic plaster in a child’s bedroom or play room, then our is perfect and safe.

• What can I hang on magnetic plaster?
• How much weight can magnetic plaster hold?
• How thick should you apply magnetic plaster?

Magnetic plaster is best used for hanging light to medium weight items that you would normally be hung using pins, tacks or nails – prints, pictures, clocks and small mirrors can all be hung easily. Heavier items like bookshelves and even TV’s have been hung on the plaster, but this requires a careful arrangement of magnets to achieve.

If you require advice, please give one of our technical advisors a call on 0845 5194701.This depends very much on the thickness of the plaster applied, the quality of the magnets used, the size of the magnet used and the texture of the surface wall. At first4magnets, we would not recommend attempting to hang anything heavier than 5kg.As per the manufacturer’s instructions, the plaster should be applied at least 3mm thick in two coats.

If it is applied more thinly, it will weaken the attraction between the plaster and the magnets used. Likewise, if it is applied thicker, the attraction would be slightly stronger; 3mm – 5mm is perfect. For detailed application instructions, please read the How much does one bag cover? One 25kg bag of magnetic plaster will cover five square-metres if applied at 3mm thickness.

1. What surfaces can magnetic plaster be applied to?
2. Do you need special tools to apply it?
3. Can you paint magnetic plaster?

Magnetic plaster is best applied directly on to plasterboard, including moisture resistant boards, but can also be applied to undercoat plaster or suitable sealed painted walls.No special tools are required. The tools you would normally use to apply regular plaster are suitable for applying magnetic plaster.Absolutely.

Once set, magnetic plaster is grey in colour and no more difficult to cover than regular plaster. Regular primer and emulsion will provide a finish that blends in with your existing walls. Just remember, that every coat of paint increases the gap between the plaster and the magnets. If re-painting, it would be beneficial to remove as much of the original coat before repainting.

Always make sure the plaster is dry before painting. Many customers choose to paint with a top coat of or to create a truly interactive surface! Why not just use magnetic paint? is a good solution for light items such as things you may typically mount using pins or tack.

• What is the shelf life of the product?
• Will it affect my Wi-Fi connection, phone signal or other electronic devices?

Once set, magnetic plaster is just as durable as regular plaster.The shelf life of the product is five months. No, the magnetic plaster will not affect any wireless signals in your house or any other electronic devices. : Thistle Magnetic Plaster by British Gypsum – 25kg bag (5sqm coverage)

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## What is the volume of 50kg cement?

Volume=(50 kg1440 kg/m2)= 0.0345m3.Q. A cement bag contains 0.035 cubic meters of cement by volume.

## What is the formula for plastering wall?

Area of Plastering = Length × Width. Amount of Cement = ÷ Volume of Cement. Amount of Sand = × Density of Sand.

## What is the unit of plaster work?

23- Steel Work : –

• Steel bars in RCC work: It is measured in Quintal.
• Bending/ Binding of steel: It is measured in Quintal.
• Rivets and Bolts: It is measured in Quintal.
• Iron Railings/ Grills / Insert Plate : It is measured in Quintal.

24- Pointing: It is measured in SQM or m2. Pointing work which is less than 30 cm in width will be measured in RMT. Openings smaller than 0.5 Sqm should not be deducted.

1. 25- Piping: It is measured in RMT or m.

: Unit Measurement of Various Item Work In Civil Construction – Civil Billing

## Is plaster strong as cement?

What Benefits Does Plastering Offer? – Plastering offers multiple benefits to walls and ceilings. Both external and internal plastering is essential to lend the required strength and support. Plaster serves as a protective cover on stones and bricks and extends durability to ceilings as well as walls.

Plastered walls are also protected against climate damage including rain, heat, and humidity. It is also easier to repair plastered walls in case if they get damaged in any way! Plastering also helps the levelling of the surfaces, and such walls are also finish-friendly as different finishes can be applied to it to enhance its look and appeal.

Your home could also be less polluted as plastered walls tend to attract and create less dust. Different materials are used for plastering, but the most commonly used plastering materials are cement and gypsum, The answer to which material is best for your home will depend on an analysis of the advantages and disadvantages of each. Cement plaster is made by mixing cement, sand, and water, usually, the ratio of cement and sand is 1:4. The thickness of plaster depends on the surface to be plastered and could be around 12 to 20 milliliters. Sometimes, plasticizers are also mixed in the plaster to protect walls from parasites.

• Pros:
• The best thing about cement plaster is that it can be used both for external as well as internal plastering.
• Cement plaster is the best bet when it comes to plastering exterior walls because it is moisture-resistant and will protect the wall against climate changes as well as environmental pollution.

Moreover the durability factor in cement plaster makes it the ideal choice for internal plastering too. Cement strengthens the walls, especially the hollow-concrete blocks. Also, when it comes to electrical fittings and wiring, cement plaster will not develop cracks and offer a sturdy base for drilling and holding it together.

Cons: The surface after cement plastering tends to look uneven and rough. Hence, it will require an additional process to achieve a smooth finish. Often, POP is applied to the plastered walls to give it a smooth finish. Cement-plastered walls and ceilings require water curing for about a week. Without the process, the surface will not gain strength and may soon develop cracks.

Over time, surfaces may even shrink causing hairline cracks. It is a ready-made plaster and is used after mixing it with water. It is white in colour and powder in form. The thickness varies for wall and ceiling plastering, for the wall it could be around 11 millimeters while for the ceiling, the thickness is just about 8 millimeters.

Gypsum plaster is also heated at specific temperatures to get different types of plasters. Pros: Unlike cement plaster, gypsum plaster does not require punning or any special process to achieve smoothness on the surface. Thus, it saves costs and time. Cement plaster has to be prepared manually but gypsum plaster is available in ready form.

Hence, preparing it is much easier and convenient. Gypsum plaster does not expand or contract with time; hence shrinkage does not happen. Gypsum plaster is extracted from gypsum rock and later dehydrated to obtain the powder form. The biggest advantage is that gypsum plaster can be recycled and reused many times.

1. It saves a lot of time because it dries very fast and you can start your painting work within 72 hours of plastering.
2. A great benefit of gypsum-plastered walls is that its thermal conductivity is low and hence is adept at keeping your home cool during summers and warm during winters.
3. The high resistant nature to fire and mould protects your walls and ceilings for a long time.
4. Cons:
5. The main disadvantage of gypsum plastering is that it is suitable only for interior plastering.
6. It is not moisture-resistant and hence unsuitable for damp areas such as bathrooms, basements, balconies or kitchens.
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One needs to be careful when working with gypsum plaster when the plastering and painting work is completed. Being relatively soft in its property, gypsum plaster tends to break or develop cracks easily when drilling into the walls for electricals, wall hangings, wiring, etc. Both have pros and cons, but when it comes to exterior plastering, nothing beats cement plaster. For interior plastering, gypsum plaster is often preferred especially as it dries quicker and is easy to prepare and level. There are also other reasons for choosing gypsum plaster.

It saves time and cost because it does not require water curing, unlike cement plaster. Depending upon the place of construction, water may not be available at all or may be very expensive. Gypsum plaster also dries faster, so there is no waiting time required to start painting and other work. Since gypsum plastered walls have a good finish, you needn’t spend additional time and money on extra smoothening of the finishes.

Also, gypsum is often preferred by developers as part of the interior plastering as it saves cost, Cement plaster has to be prepared with the right ratio of sand and cement, any ingredient in excess and you will not be able to get the right plaster texture.

• When you use gypsum plaster, all you have to do is mix it with enough water.
• Gypsum plaster is also a green product as it can be recycled and reused.
• At times walls plastered with cement may develop cracks or shrinkage after a few months, but gypsum plaster remains fault-free for a longer time.
• It doesn’t mean it is stronger and durable than cement.

When a comparison is made, gypsum plaster seems to earn more favourable points. However, when it purely comes to durability, cement plaster is better in the long run, If you are looking for expert advice on how to get your home done up, get in touch with Hipcouch today! Get Interior Designing Cost Calculators Interior Design Tips, Guides to help you make Smart Choices for your Interiors & Decor without filling up your email inbox! : Gypsum Plaster vs Sand Cement Plaster: What Are They & Which One’s The Better Bet?

### How much is one bag of cement in plaster?

1 bag of cement covers how much area of plaster –

• 1 bag cement plaster coverage area is calculated by consumption of cement and sand quantity in plaster, that is very good questions 1 bag of cement covers how much area of plaster.
• 1) 1 bag cement external wall plaster coverage area ( 1:6 mix ratio & 20 mm thick plastering)
• Given no of cement bags = 1 bag
• 1 bag cement weight = 50 kg
• Density of cement = 1440 kg/m3
1. Dry Volume of cement = weight/density
2. Dry volume of cement = 50/1440 = 0.0347
3. Dry volume of cement = 0.0347 m3
4. If cement sand ratio is 1:6, than

Dry volume of sand = 0.0347 ×6 = 0.208 m3 Total volume of mortar = 0.2427 m3 For converting dry volume of mortar to wet volume we will divide by 1.33 to dry volume of mortar Wet volume = 0.2427/1.33 = 0.1825 m3 Thickness of plaster = 20 mm = 0.020 m Coverage area of plaster = 0.1825/0.02 = 9.125 m2 ● Ans.

• Given no of cement bags = 1 bag
• 1 bag cement weight = 50 kg
• Density of cement = 1440 kg/m3
1. Dry Volume of cement = weight/density
2. Dry volume of cement = 50/1440 = 0.0347
3. Dry volume of cement = 0.0347 m3
4. If cement sand ratio is 1:4, than

Dry volume of sand = 0.0347 ×4 = 0.1388 m3 Total volume of mortar = 0.1735 m3 For converting dry volume of mortar to wet volume we will divide by 1.33 to dry volume of mortar Wet volume = 0.1735/1.33 = 0.131 m3 Thickness of plaster = 12 mm = 0.012 m Coverage area of plaster = 0.131/0.012 = 10.92 m2 ● Ans.

## How thick is cement plaster?

Plaster over concrete or masonry is referred to as a maximum thickness. Without lath, the maximum is 5/8-inch for walls and 1/8-inch for ceilings. Plaster may be applied thicker, if lath is used.