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Instead of plastering entire surface of the masonry, special mortar finishing work is done to the exposed joints. This is called pointing.POINTING.
| SL.NO | PLASTERING | POINTING |
|---|---|---|
| 2. | It provides smooth surface. | It does not provide smooth surface. |
What is pointing in plastering?
The term pointing is used to denote the finishing of mortar joints of either stone or brick masonry. The joints are racked out to a depth of about 20 mm and then, these space are filled up by suitable mortar in the desired shape.
What is the difference in plastering and pointing?
The plaster covers the complete surface of the masonry. Pointing covers only the joints of the masonry. Type of plasters used are lime , cement, mud plaster, Water proof plaster and plaster of paris.
How do you find the pointing quantity?
Therefore, For pointing in cement mortar (1:3) proportion, Quantity of cement required = 0.076 / (1+3) = 0.019 cum. and, Quantity of mortar required = [0.076 / (1+3)] x 3 = 0.057 cum.
Can I use cement instead of plaster?
Interiors are usually finished using plaster, while exteriors use cement render. When applied to a flat surface, plaster is extremely smooth, so it’s perfect for interiors. Cement rendering involves a much higher proportion of sand for additional strength.
What is the object of plastering and pointing?
Plastering conceals defective workmen ship and covers up unsound and cheap quality material. Plastering on external walls is done with the object of improving the resistance of the surface to rain water penetration and other atmospheric influences. Plastering protects surfaces against vermin.
What is pointing on a house?
Pointing is the term given to the ‘finish’ that is between the bricks or stone used to build your house. Depending on the age of the building, the mortar used to lay the stone or brick will either be made from lime, or more recently, cement.
Can you use plaster instead of mortar?
Basically a mortar is used as a bedding material for masonry products. Plaster is used (normally) to provide a smooth surface to walls/ceilings ready to be decorated. You could use mortar to “plaster” a wall (we call it render), but you would not get the same smooth finish you get with plaster.
What is pointing and its purpose?
Pointing, in building maintenance, the technique of repairing mortar joints between bricks or other masonry elements. When aging mortar joints crack and disintegrate, the defective mortar is removed by hand or power tool and replaced with fresh mortar, preferably of the same composition as the original.
What are the different types of pointing?
Types of Pointing in Brick Masonry Construction
- Flush Pointing.
- Recessed Pointing.
- Beaded Pointing.
- Struck Pointing.
- Rubbed, Keyed or Grooved Pointing.
- Tuck Pointing.
- V- Pointing.
- Weathered Pointing.
What are the types of plastering?
Types of Plaster
- Browning plaster.
- Bonding plaster.
- Thistle plaster.
- Carlite plaster.
- Hardwall plaster.
- Dri-coat plaster.
- One Coat plaster.
- Tough coat plaster.
Is plaster similar to concrete?
Does plaster contain cement? The most common types of plaster mainly contain either gypsum, lime, or cement, but all work in a similar way. The plaster is manufactured as a dry powder and is mixed with water to form a stiff but workable paste immediately before it is applied to the surface.
What is flush pointing?
Flush pointing is when mortar is pressed hard in the raked joints, and finished off flush with the edge of masonry units. The edges are then neatly trimmed with a trowel and straight edge. Concave pointing is formed by making the mortar flush with the face brick then struck with a brick jointer.
What is the difference between pointing and jointing?
The words jointing and pointing are commonly loosely used. Jointing is the operation of finishing off a mortar joint as the brickwork is raised, whereas pointing is the operation of filling the joint with a specially selected material for the sake of appearance or as weather protection to old lime mortar.
What is the object of pointing?
Object of pointing :- The main object of the pointing is to maintaining the joints of the structures. Pointing being cheap can be adopted in places of low rainfall. Pointing gives resisting power to the bricks and stones used in construction towards weather conditions.
What is the process of pointing?
Pointing is the process of finishing mortar joints, whether it is brick masonry or stone masonry. The joints are raked out 13 to 20 mm deep, and space is filled by appropriate mortar in the desired shape. Pointing may be done in the lime mortar or cement mortar.
What is the difference between plaster and mortar?
Mortars are used in masonry for joining stones, bricks, blocks etc. and plasters are used for rendering on the outside and inside of walls. For plasters we use finer sand. However the term mortar is also used loosely to refer to both plasters and mortar.
What is the best plaster for walls?
Gypsum plaster can achieve a fine finish and is often used as a topcoat in plastering projects. It’s less prone to cracking, making it a great choice for your walls’ longevity. This is a versatile plaster that can be used to create a great first coat, called undercoat, for your project.
What is plastering and painting?
In dentistry plaster is used to make dental impressions. Various types of models and moulds are made with plaster. In art, lime plaster is the traditional matrix for fresco painting; the pigments are applied to a thin wet top layer of plaster and fuse with it so that the painting is actually in coloured plaster.
Why is it called pointing?
Pointing is the name given to the tooled pattern of mortar between the bricks, so called because it used to be shaped with the point of the trowel.
What are the defects in plastering?
9 Types of Defects Observed in Plastering
- Blistering of Plastered Surface.
- Cracks in Plastering.
- Efflorescence on Plastered Surface.
- Flaking.
- Peeling.
- Popping.
- Uneven Plaster Surface.
- Softness of the Plaster.
What is used for plastering?
Plaster, a pasty composition (as of lime or gypsum, water, and sand) that hardens on drying and is used for coating walls, ceilings, and partitions. Plastering is one of the most ancient building techniques.
