Author: James KrilichBYZANTINE TECHNIQUE
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Cut a piece of wood approximately 3cm bigger of
the size of the mosaic you want to create.
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Cut 4 battens and screw them at the edge of the
wood . Apply and fill with clay (black). At the end wet the clay
with water.
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Sketch out the design you like on a piece of
'paper' P.V.C. and put it on the clay.
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Starting from the top left edge, cut the paper
into small pieces, put in the clay, the marbles, stones,
glasses, tesserae and lay the mosaic.
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Once the area is complete and you have made any
last-minute revisions to the design, cut a piece of strong yet
thin cloth. Brush the surface of the mosaic with a wall paper
paste and lay the cloth over it . Leave to dry for 1-2 days.
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Remove all the screws and battens and turn the
'mosaic' carefully.
Divide and cut the dry clay' into small squares and carefully
clean off any remaining clay. The gaps between the pieces must
be clean.
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Make frame (wooden or metallic) and place a
piece of chicken wire into the frame.
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Mix equal parts of cement and fine sand and add
water until the consistency is dryish.
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Pour the cement into the frame and fill it.
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Using both hands lower the cloth (mosaic) into
the cement, tap from the sides to dislodge any trapped air
bubbles. After 10-20 minutes dampen the cloth with water and
gently remove it back to reveal the mosaic surface. Wet again
and wipe off the stray cement with wet cloth or sponge.
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Leave for 1 1/2 hours. Then wet again and leave
to dry for 3-4 days 'watering' from time to time.
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Polish with a clean lint-free cloth.
DIRECT TECHNIQUE
Into prepared ground
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Make a frame of wood or metal.
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Full it with grout (equal part of dry cement and
sand with water ) up to the top.
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Quickly place the pieces of pebbles and marble
in according to your pattern. You must complete your work in 3-4
hours otherwise the ground will be useless.
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Once the mosaic is completed, clean the surface
from the stray cement and wipe off the excess.
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Leave to dry and wet again from time to time for
the next 2 days or cover it with wet towel .
On wooden base
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On a piece of wood (fiberboard or ply board)
draw a design (with details).
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"Butter" the backs of the pieces with P.V.A.
adhesive and stick them down, 0,5 cm from the end, leaving small
gaps between the pieces for grouting.
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Make the frame.
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Mix equal quantity of dry cement with fine sand,
add water gradually and make a consistency like soft butter.
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Fill the gaps and wipe to remove the excess.
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Leave for 30 minutes and clean again.
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Leave to dry for 24 hours and then polish .
INDIRECT TECHNIQUE
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Sketch a piece of brown paper (soaking) over a
piece of wood (fiberboard or ply board).
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Draw your design/pattern (with details) on the
paper.
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Make a frame of wood or metal and place it
around the edge of the mosaic pattern.
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Stick the pieces (stones, tesserae, marble) face
down. Use gum Arabic or wallpaper paste.
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Make grout using a mixture of equal quantity of
dry white cement type
1 and sand, add water until the mixture has a butter
consistency.
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Trowel grout on to the pieces and spread it
across the 'stones'.
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Place chicken wire over the mosaic.
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Mix equal parts of white cement type 1 with
aggregate and sand to a dryish consistency.
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Shovel the type 1 cement over the grout up into
the frame - over the chicken wire. Place another piece of
chicken wire into the cement surface to further strengthen the
mosaic and cement bonding process.
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Wet the cement cure for at least 3 days --
keeping it moist with water....keeping it covered with a wet
towel.
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Cover with 6 mil plastic and carefully place a
piece of wood on top of the plastic to keep it in place over the
mosaic.
Mosaic Artist Academies.
Fondazione Bambini e Autismo Onlus
Segreteria scientifica Fondazione bambini e autismo:
email address to the secretary of the mosaic school:
segreteria@bambinieautismo.org
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