Mosaic Tiles
Mosaic tile work is commonly looked at as an art and usually consists of small ceramic, stone, or glass tiles arranged into a composition. The sizes and shapes of the tiles can vary as well as colors and translucency.

01: Rectangular tiles applied as a kitchen backsplash
Characteristics
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Usually ¼” thick and available in 12 x 12” sheets
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sizes of individual tiles can vary from 1/2x1/2" to 4x4"
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Shapes of tiles vary from squares to hexagons
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Can be made of ceramic, glass, or stone
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Commonly arranged in a decorative design to create a pattern or image.
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Can be used on walls, floors, showers, and a variety of other applications as well as different rooms throughout the house.
Organization:
Ceramic Tile Foundation https://www.ceramictilefoundation.org/
The American Ceramic Society

02: Mosaic tiles designed as a mural for an accent wall
Production & Maintenance
Production:
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Ceramic Mosaic tiles are made of clay mined from the earth
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The clay and coloring materials are mixed together with water into a paste and pressed or formed into the preferred shape
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Once formed the tiles are commonly glazed and fired to the preferred style
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Mosaic tiles come in sheets held together by a mesh backing
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To apply mosaic tiles, a joint compound or thin-set is applied first then the sheet of tile is pressed down
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The tiler must tamp down the tile to be sure it has fully adhered to the surface and each tile is even with the others
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Grout is then applied across the surface to seal the spaces between the tiles
Maintenance:
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After installation, there will be excess grout and joint compound that can cause roughness and scratching so the surface must be wiped down to clean off the excess
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Be sure not to use acidic cleaners, as that can cause discoloration in the tiles
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Routine cleaning includes simple wiping with a mild detergent and soft cloth to avoid scratches and fading

03: 1960s inspired wall tiles
Environmental Impact
The firing process uses high amounts of fuel and shipping costs can be prohibitive
Environmental costs can be decreased by using grog in the process
Many mosaic tiles can be made using glass and are often made of recycled materials
Application
One of the many applications for mosaic tiles is in the bathroom. A very common application is shower wall and floor tile.
Like other applications, the tile can come in a large variety of shapes, sizes, and colors as well as grout color.
Shower Tile Standards:
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ASTM C373 - 14: Standard Test Method for Water Absorption, Bulk Density, Apparent Porosity, and Apparent Specific Gravity of Fired Whiteware Products, Ceramic Tiles, and Glass Tiles
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ASTM C627: Test Method for Evaluating Ceramic Floor Tile Installation Systems
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ASTM C648 - 20: Standard Test Method for Breaking Strength of Ceramic Tile
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ASTM C373-17: Standard Test Methods for Determination of Water Absorption and Associated Properties Ceramic and Glass Tiles

04: white mosaic tiles applied to walls of bathroom and shower
Resources

Images:
Information:
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Page by Ruth Baker
05: Dark blue hexagonal tiles applied to bathroom vanity wall surround