“Stone and Brickwall Restoration” Nomination

The masonry restorer restores and preserves building and cladding elements of historical masonry made of brick and natural stone. The restorer must: know various types of historical building materials, their physical and chemical properties, methods and technologies of their restoration. The restorer must comply with the technology of restoration of masonry made of artificial and natural stone, competently own a specific working tool. The masonry restorer restores and preserves building and cladding elements of historical masonry made of brick and natural stone. The restorer must: know various types of historical building materials, their physical and chemical properties, methods and technologies of their restoration. The restorer must comply with the technology of restoration of masonry made of artificial and natural stone, competently own a specific working tool.

1. Cleaning of brick and stone surfaces.
The initial stage of work is to clear the surfaces of bricks and limestone from the remains of old mortars and contaminants.
Cleaning is carried out mechanically: in case of large contamination with cement mortars - with a hammer and chisel, as well as with brushes and brushes, if necessary - sandpaper. The work should be carried out carefully, with minimal damage to the texture of the brick or stone surface.
All work should be carried out carefully, without violating the integrity of the masonry.
The final stage of clearing is dusting with soft pile brushes.

2. Selection of the right color of a large stone substitute according to the color of a particular brick.
For each specific restored area, its own color of coarse-grained stone substitute is selected with the help of samples. Samples of material are issued by the competence organizers.

3. Preparation of a mortar mixture of a large stone substitute.
The necessary amount of mortar mixture is prepared to replenish the brick material in places of major losses. Preparation of the working solution is carried out in stages for each layer: sludge, layered application.
The working mixture is prepared to a liquid-plastic consistency (slagging) and a thick-plastic consistency (filling defects) in accordance with the shutter water norm (see technical description).

4. Componment of large brick defects.
Before starting work, the nest is modified with a hammer and chisel, notches are applied. The surface of the nest should be dedusted and moistened with water with a brush. Then a thin primer layer of liquid-plastic consistency material (slag) is applied. After drying and initial hardening, a coarse-grained thick-plastic consistency of stone substitute is applied layer by layer also with exposure to hardening. The composition is applied just above the front surface of the brick, then the surface is compacted.

5. Selection of the desired color of the small stone substitute according to the color of a particular brick.
For small defects, it is necessary to choose your own color of fine-grained stone substitute. Also, the selection of the color of the fine composition is possible when adjusting the work with coarse-grained material.

6. Preparation of a mortar mixture of small stone substitute.
The necessary amount of mortar mixture is prepared to replenish the brick material in places of minor defects. Preparation of the working solution is carried out in stages for each layer: sludge, layered application.

7. Masticization of small brick defects.
With a brush, the nest is wetted with water. After that, a fine-grained stone substitute of thick-plastic consistency is applied layer by layer to the wet surface with the formation of the front surface of the sealing. The composition is applied just above the front surface of the brick, then the surface is compacted.

8. Selection of the desired color of a large stone substitute in accordance with the color of the stone.
For each specific restored area, its own color of coarse-grained stone substitute is selected with the help of samples. Samples of material are issued by the competence organizers.

9. Preparation of a mortar mixture of a large stone substitute.
The necessary amount of mortar mixture is prepared to replenish the brick material in places of major losses. Preparation of the working solution is carried out in stages for each layer: sludge, layered application. The working mixture is prepared to a liquid-plastic consistency (slagging) and a thick-plastic consistency (filling defects) in accordance with the locking water norm.

10. Componment of large limestone losses.
Before starting work, the nest is modified with a hammer and chisel, notches are applied. The surface of the nest should be dedusted and moistened with water with a brush. Then a thin primer layer of liquid-plastic consistency material (slag) is applied.
After drying and initial hardening, a coarse-grained thick-plastic rock substitute is applied layer by layer also with exposure to hardening. The composition is applied just above the front surface of the stone, then the surface is compacted. Particular attention should be paid to the fact that the work should be carried out in maximum accordance with the torn texture of natural stone.

11. Selection of the desired color of a small stone substitute according to the color of a particular stone.
For each specific restored area, its own color of fine-grained stone substitute is selected with the help of samples.

12. Preparation of a mortar mixture of small stone substitute.
The necessary amount of mortar mixture is prepared to replenish the brick material in places of minor defects. Preparation of the working solution is carried out in stages for each layer: sludge, layered application. The working mixture is prepared to a liquid-plastic consistency (slagging) and a thick-plastic consistency (filling defects) in accordance with the shutter water norm (see technical description).

13. Masticization of small limestone defects.
The surface of the nest should be dedusted and moistened with water with a brush.
After that, a fine-grained stone substitute of thick-plastic consistency is applied layer by layer to the wet surface with the formation of the front surface of the sealing. The composition is applied just above the front surface of the stone, then the surface is compacted. It is necessary to pay attention to the preservation of the texture of natural material.

14. Selection of the desired color of the suture solution in accordance with the color of the specific original suture solution.
Using samples of suture composition, the desired color with its own number is selected to recreate the suture filling. The landmark for color selection is masonry areas with available suture solution.

15. Preparation of a mortar mixture of suture material.
Using a drill with a mixer nozzle or manually (depending on the planned volume), prepare the right amount of mortar mixture of suture solution.
The working solution is prepared to a thick-plastic consistency (wet ground consistency) in accordance with the valve water quantity norm (see technical description).

16. Refilling the suture solution.
Before applying the suture composition, the seam nest is wetted with water with a brush. Next, it is necessary to fill the seams with a prepared mortar mixture. The work is done using flat stitching. Seams should be filled in stages, in two or three approaches with a thickness of each layer of about 1 cm. Previous layers are kept until hardening begins. The last layer is smoothed by the tool to get the desired seam pattern. After the mortar is dried, the edges of the brick or stone are cleaned.