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Pointing :- It is the art of finishing the mortar joints in the exposed brick or stone masonry with suitable cement or lime mortar, in order to protect the joints from weather effects and also to improve the appearance of building structure.
What are the objectives 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 and its types?
Pointing is the finishing of mortar joints in brick or stone masonry construction. It is done for cement mortar and lime mortar joints. In exposed masonry, joints are considered to be the weakest and most vulnerable spots from which rainwater or dampness can enter.
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.
What is the advantage of flush pointing?
Flush pointing: In any pointing, joints are raked and completed flush with the face of the brick masonry. The sides are correctly trimmed, it is the easiest method in which is extensively used in masonry work. It does not give good look however it is extremely sturdy and it doesn’t enable dust, dirt to lodge over it.
How do you do flush pointing?
Flush Pointing is made with lime mortar and applied to fill the brick joints. Then excess mortar is carefully brushed off and just showing the arises of each brick with their sharp edges. There are always considerations to take into account, condition, time available, budget.
Can you buy ready made mortar for pointing?
U-Can Ready To Use Pointing Mortar is the quick and easy way to repair & smooth rendered walls! For use on small areas of pointing only.
What is the best mix for pointing?
How to: Pointing & Repointing Brickwork
- A typical mortar mix for Repointing purposes, for use in an area subject to normal weather conditions, would comprise 1 part Portland Cement, 1 part Lime and 5½ parts Sand.
- Lime can be very beneficial in repointing mortars.
What is jointing and pointing?
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.
How expensive is repointing?
The cost of repointing is typically around £20 to £30 per square metre. So, for a whole wall on a medium-sized home, the cost could be £1,000 to £1,500. Repointing the brickwork around an entire home would be around £2,500 to £3,500.
What is the best mortar mix for pointing?
Mortar Mix for Pointing The preferable mortar mix ratio for pointing is 1-part mortar and either 4 or 5 parts building sand. The ratio will vary depending on what exactly is being pointed. For bricklaying, you will usually want a 1:4 ratio with plasticiser added to the mixture.
What happens if you don’t repoint brickwork?
The process of “repointing” is to replace the old mortar and holds the bricks back together again. A lack of mortar would also mean that water can seep into your property and create problems such as water damage or damp.
How often should you repoint brickwork?
In a brick wall the brick must always be considered permanent and the mortar sacrificial. There should therefore be cycles of repointing at about 50 year intervals where the brick remains the permanent feature and the mortar is the element that is replaced.
What is the difference between pointing and plastering?
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 |
|---|---|---|
| 1. | It is applied to entire surface. | It is provided only at exposed joints. |
| 2. | It provides smooth surface. | It does not provide smooth surface. |
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 pointing in brickwork?
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.
Are pointing guns any good?
“Pointing guns are quiet cheap on todays market and are very useful, I find them very good for a large areas of pointing because of the speed and accuracy they are used. They can be tricky to use , so I would suggest you try a practice area firstly , if your confident then move on,hope this helps.”Mar 31, 2020
What is the definition of pointing?
Pointing is a gesture specifying a direction from a person’s body, usually indicating a location, person, event, thing or idea. It typically is formed by extending the arm, hand, and index finger, although it may be functionally similar to other hand gestures.
What is the difference between mortar and plaster?
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.
How do you define plastering?
noun. the process of working with plaster. a coating of plaster. a decisive defeat; drubbing.
What do you use for pointing?
Standard mix for wall pointing: 5 parts building sand, 1 part cement, add plasticiser to manufacturers instructions. Use maximum amount when mixing by hand. Patio slabs or exposed brickwork, you may need a stronger mix. For example – 3:1 sand / cement.
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.
