The Portland Cement Company makes these tiles out of a proprietary concrete, which is cast in a wedge-shaped seven-inch-hexagon mold and left to dry overnight, then for a few weeks on a baking sheet.  How to Design with Hexagon Patterns by Erika Heet

How to Design with Hexagon Patterns

The Portland Cement Company makes these tiles out of a proprietary concrete, which is cast in a wedge-shaped seven-inch-hexagon mold and left to dry overnight, then for a few weeks on a baking sheet.

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