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Joint in ceramics slab.
Slabs can be made in a variety of methods.
Joints should be spaced about 10 feet and a maximum of 15 feet.
I assemble the slabs to form the bottom and sides of the box using slip 3 and rib the joints together on the outside of the box using a serrated rib 4.
Saw cut joints should be done within 4 to 12 hours after the concrete has been finished.
Using slab pottery templates to assemble forms.
Place isolation or control joints in the slab where they ll coincide with expansion joints in the tile more on that below.
Other methods include using slab rollers extruders and hand tossing.
Lower on one end than the other.
Maximum joint spacing should be 24 to 36 times the thickness of the slab.
Next i add coils to the joints on the inside of the box and smooth the coils using my finger and water.
When using joint groove for contraction joints the joint should be a minimum depth of thickness of the slab.
For good surface drainage the slab should slope 1 4 in.
Modern potters and ceramic sculptors have embraced the slab creating works using both soft slabs and stiff leather hard slabs.
Shaping clay by inserting the thumb of one hand into the clay and lightly pinching pressing with the thumb on the inside and fingers on the outside while slowly turning the clay to enlarge the center opening of the clay.
Clay is rolled into thin sheets or slabs and then formed into shapes or forms.
Nov 20 2019 explore sue s board slab pottery followed by 425 people on pinterest.