How to make this pattern in a tile?

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Discussion Overview

The discussion revolves around the identification and production methods of a specific ceramic tile pattern observed in a restaurant. Participants explore the materials and techniques involved in creating the tile's appearance, including the potential use of aggregates and polishing methods.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions whether the material is ceramic, suggesting it may be a pressed composite with a transparent ceramic coat.
  • Another participant proposes that the tile may contain embedded quartz or flint stone aggregate within a powdered ceramic material, which is then fired and polished.
  • A later reply reiterates the idea of embedding aggregates and polishing but adds a note of uncertainty about the specific materials used.
  • Concerns are raised about the potential irregularities in the surface when pressing large pieces of aggregate into sintered ceramic, questioning the cutting and grinding processes involved.
  • One participant suggests that modern materials and tools, such as silicon carbide and diamond grinders, could make the smoothing process more efficient compared to traditional methods.
  • There is a suggestion to research commercial building supplies to find more information about the production processes used by manufacturers.

Areas of Agreement / Disagreement

Participants express differing views on the material composition and production methods of the tile, with no consensus reached on the exact nature of the tile or the processes involved.

Contextual Notes

Participants acknowledge the limitations of their analysis, primarily based on a photograph, and express uncertainty regarding specific techniques and materials.

Varadha
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Are you sure that's ceramic? From the picture, it looks more like some sort of pressed composite, possibly with a transparent ceramic coat...
I don't think that I can offer an informed opinion; I'd need to get my hands on it in person.
 
It looks like they embedded quartz (or is that flint) stone aggregate within a powdered ceramic material, fired it then polished smooth which also polished the aggregate faces to show some depth.
 
jambaugh said:
It looks like they embedded quartz (or is that flint) stone aggregate within a powdered ceramic material, fired it then polished smooth which also polished the aggregate faces to show some depth.

Uh, yeah, that's what I meant to say... :rolleyes:
 
jambaugh said:
It looks like they embedded quartz (or is that flint) stone aggregate within a powdered ceramic material, fired it then polished smooth which also polished the aggregate faces to show some depth.

Thank you. But, pressing large pieces(quartz or whatever) on a sintered ceramic will get irregularity in the surface right? Those protruding embedments have to be cut and do they use grinding wheels for that purpose? Isn't it a tiresome process?
 
Varadha said:
Thank you. But, pressing large pieces(quartz or whatever) on a sintered ceramic will get irregularity in the surface right? Those protruding embedments have to be cut and do they use grinding wheels for that purpose? Isn't it a tiresome process?

I think it is much less so with better available materials, silicon carbide, tungsten carbide, and diamond grinders and stone planers. I figure if they can cut and polish granite counter tops out of large quarry stones they can smooth down a cast ceramic much more quickly. But remember I'm extrapolating from a picture. Try web searching for commercial building supplies and seeing what you turn up.

Most companies are proud to educate the consumer as to their unique process, (short of giving away trade secrets).
 

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