Questions and Answers
What is the temperature at which vitreous tile is fired?
2200°F for up to 30 hours
What is the water absorption rate of vitreous tile?
Between 0.5% to 3%
Why is vitreous tile suitable for floors?
Because of its high compressive strength
What type of adhesive should be used for wet installations of vitreous tile?
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What is the characteristic that makes impervious tile suitable for sanitary installations?
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How should vitreous tile be prepared before grouting?
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Study Notes
Vitreous Tile
- Fired at temperatures of around 2200°F for up to 30 hours, causing ingredients to fuse together like glass
- Absorbs only 0.5% to 3% water, making it excellent for wet or freezing installations
- Dense bisque provides high compressive strength, allowing it to withstand heavy loads without fracturing
- Suitable for floors due to its ability to bear considerable weight
- Some vitreous tiles may have soft glazes, so it's essential to check the manufacturer's specifications for floor suitability
- Can be set with organic mastic or thinset in dry installations, and only polymer-modified thinset in wet installations
- Only needs to be sponged down before grouting, not misted with water
Impervious Tile
- Absorbs less than 0.5% water, making it almost waterproof
- Frequently used in sanitary installations in hospitals and pharmaceutical plants
- Easily sterilized and can withstand repeated cleaning and disinfection
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