Types of Pointing in Brick Masonry Construction
Pointing is the craft of consummation the issue joints inside the uncovered brick work with a satisfactory cement or lime mortar, to shield the joints from climate impacts, to upgrade the presence of building structure. The joints on the essence of any stone work are generally filled, though the divider is being raised.
Pointing is finished with the accompanying mortar blends:
1. Lime mortar 1: 2 blend (1 lime: 2 sand)
2. Cement mortar 1: 3 blend (1 cement: 3 sand)
Technique for Pointing: All the mortar joints in the brick work are raked out to a profundity of 10-15mm with the assistance of pointings tool. Residue and free mortar are completely cleaned. The joints and the surface are washed with clean water and saved wet for at times.
The mortar is taken in a little dish and the old mortar is squeezed into the joints and loaded up with little trowels to reach the joints. Joints are disposed of flushed, sunk, or raised relying upon necessities, expelling overabundance mortar. The completed work is restored for 3-4 days in instances of lime mortar and for 10 days when cement mortar is utilized.
Types of Pointing: Pointing is characterized by wrapping up. The kind of pointings is choice dependent on the sort of brick work, the idea of the structure and the ideal impact of finish.
Beaded pointing: This kind of pointings gives a generally excellent appearance however is hard to keep up. The raked joints are loaded up with a mortar and completed flush with the essence of the property after which are beaded by a steel thruway with a sunken edge in the middle of the joints.
Flush pointing: In any pointings, joints are raked and they are finished flush with the essence of the block workmanship. The sides are accurately cut. It is the most effortless kind of pointings, which is broadly utilized in brick work. This pointing doesn't give a great look, however it is very strong and it doesn't empower dust, earth to hold up over it.
Recessed pointing: In this sort of pointings, the mortar is kept vertical however inside the outside of the divider with the assistance of reasonable hardware. This sort of pointings is reasonable to withstand crafted by blocks of better surface and better quality mortar.
Rubbed or grooved pointings: In this sort of pointings, the raked joints are topped off flush with face or the moan and crescent indents are framed by an uncommon tool. This kind of pointings is regularly utilized, it improves the appearance of the cry.
Tuck Pointing: In this sort, the mortar is squeezed into the joints and completed flush with the essence of the divider. At the point when the mortar is as yet wet, a rectangular depression is framed on the center of the joints.
The score is loaded up with white lime clay and a modest quantity of silver sand, anticipating somewhat outside the completed surface of the mortar showing it. This sort of pointings gives an alluring appearance yet the filet part isn't truly strong.
Vee pointing: In this kind of pointings either 'Angular' grooves are engraved in the completed surface of the pointing mortar when it is as yet green or by anticipating the 'Angular' state of the pointing face outside the divider surface.
Endured or struck pointings: In this sort, the essence of pointings isn't kept vertical yet it is kept slanted. The upper edge of the pointing mortar is squeezed inside the brick work by around 10 mm and the lower edge is done level with the substance of the stone work. These kinds of pointings are for the most part utilized for brickwork especially for completing level joints.
Pros of Pointing:
1. Improves the general look of the structure.
2. Diminishes the requirement for other fix or restoration work.
3. Shields the dividers of the structure from unfriendly climate.
4. Improves the basic quality of the structure.
Cons of Pointing:
1. In winter, the soggy brickwork freezes, spoiling and spalling blocks or stones start to show up.
2. Pointing is answerable for the horrible harm to different dividers all through the country.