Pointing | Types of Pointing…?

Pointing

It is Pointing used to denote the finishing of mortar joints either in stonemasonry or brick masonry

Pointing is carried out as follows

• The joints to be covered by pointing are raked to a depth of 15mm.
• The dust is removed by using brushes.
• Some joints, so that the wall surface is well washed also kept wet for fewer hours before pointing.
• The mortar is placed in the joints in the desired shape.

Object / Advantages

• To prevent rainwater or dampness in the joint.
• Protects the joint from the adverse effect of the atmosphere
• To improve the appearance of the surface structure
• To prevent the entrance of dust also dirt at the joint.
• To identify the defective workmanship of joints

Types of pointing

1. Flush pointing
2. Cut or weathered or struck pointing
3. V-grooved pointing
4. Keyed or grooved pointing.
5. Tuckpointing
6. Beaded pointing

Flush pointing

• This is the simplest type of pointing
• Extensively used in brickwork and stone masonry work
• In this type, the mortar is pressed toward the raked joints including finished off including the edges of the bricks either stone
• It gives a smooth appearance

Cut or weathered or struck pointing

• During that type, the mortar is first pressed toward the raked joints.
• While the mortar is still green, the top of the horizontal joints is neatly pressed back by 3 to 6 mm. with the pointing tool.
• Each joint is finished sloping the head of the joint on its bottom.

V-grooved pointing

• This type of pointing is comparable to keyed grooved pointing by pleasantly shaping the edge of the steel rod to be used for forming the groove.

Keyed or grooved pointing

• In this type, that mortar is pressed toward the raked joints and finished off flush with the single face of the wall.
• A groove is made by running the bent edge of a small steel rod (6 mm in diameter) straight along the middle of the joints.
• The vertical joints do also finished in an identical manner

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