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The Roman engineers created roads that went through natural obstacles rather than around them wherever possible. A Roman road consisted of two parallel trenches and a well drained core. Packed small stones were the foundation and the drainage system was the best the ancient world had ever seen. Layers of concrete and cement and concrete gravel made the roads durable. The top layer was made of gravel, packed stones and paving stones.

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12y ago

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They used the stones available locally (which they cut rectangular slabs) or lave (which they cut in polygonal slabs)

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9y ago
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Gravel sand stones

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12y ago
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Stone, gravel, and sand.

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12y ago
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Q: Which rocks did the Romans use to build roads?
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