Pointing of masonry joints
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POINTING
The rehabilitation of exposed masonry made of brick or natural stone requires often a renewal of the whole joints to prevent a further humidity of the wall.
Application range
- Restoration or renovation of masonry joints
 - Joint renovation / pointing of natural stones built in
 - Gun pointing for large joints widths and great joint depths
 - Deep-hole filling
 
Material selection
The selection of the material is mainly determined by the existing material. Mortars are composed of mineral binders and admixtures if necessary, e. g.:- Lime mortar
 - Dolomitic lime mortar
 - Lime cement mortar
 - Roman cement mortar
 - Trass cement mortar
 
Note: Jointing mortar has to be machine-compatible
Examples of application
- Masonry joints
 - Floor joints
 
 
Advantages
- Clean working ensured
 - Complete filling of joints
 - Delivery rate and speed adjustable
 
Procedure
- If a repair is not possible, remove the joint material completely (z. B. AS200X Brick and Mortar Saw, no. 40040)
 - Clean joint flanks of dust and lose particles, roughen them if necessary
 - Pre-wetting using water of drinking water quality
 - Place mortar in the joints
 - Surface treatment
 - After treatment of the joints
 
Information on joint repair
WTA Merkblatt “Natursteinrestaurierung„ 3-2, Edition 10.2016 D, Information on natural stone repair: WTA Merkblatt: “Erhaltung und Instandsetzung von Mauerwerk„ E-7-1, Edition 02.2018/D (yellow print)
 
