WHAT IS POINTING? AND TYPES OF POINTING USED IN

WHAT IS POINTING?

Brick or stone masonry mortar joints are covered with a suitable cement or lime mortar, in order to protect the joints from weathering and also to improve the appearance of the building structure.

Pointing are joints are properly filled with mortar of brick or stone masonry.

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USES OF POINTING

1.   Took caring for structures joints

2.   Pointing being cheap can be adopted in places of low rainfall

3.   It gives aesthetic view to viz., stone blocks, bricks etc, as its desired to be

4.   Used to resist the weather conditions of bricks and stones masonry

POINTS TO REMEMBER

1. The entire depth of the mortar joints must be between 12 and 20 mm

2. the loose mortar on the wall should be removed with brushes or a sponge

3. The joints and the surface wall are sprayed with water to stay wet for a few hours.

4. The joints, prepared are filled with suitable mortar with a small trowel.

1:5 to 1:6 ratio according to the fineness of sand

5. All excess mortar sticking to the sides is scraped away.

6. Wall should be kept wet for 7 to 10 days after pointing work done cement mortar

Note: In some sites will start plastering work after 48 hours of pointing work done

TYPES OF POINTING

VEE POINTING

V-joint provides no form of physical force to move water due to its cut

FLUSH POINTING

Flush joints are used in the construction of brick walls, they are used for plastering and final finishing. This cut joint provides water resistance against the wall

SUNK POINTING

This is a cut joint used due to its high resistance to rainwater penetration by its curve

RAISED POINTING

The excess mortar in the joint will easily come out and form a mortar rise between the bricks. Raised seals are used for degradation when subjected to different weather conditions.

                         

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