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With the proper know-how, readily available earth, sand, chalk, lime, or gravel can yield a versatile, strong, and durable construction material. Its colorful results vary from region to region, depending on the natural soil component, climate, and treatment. While some prefer to minimize any added processing, others relish the exploration of rammed earth surfaces. Different textures and mesmerizing layers of multitoned or multicolored earth can be used to create a solid surface that enriches the visual quality of a space and carries a sense of warmth to any project. 

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Videos

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Videos

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The oldest record of barrel vaults is estimated to date back to 4000 BC. These provided the spans in the Sumerian ziggurat at Nippur in Babylonia, built from fired bricks amalgamated with clay mortar. This type of vault was built as a continuous round arch and became a characteristic architectural element of Roman architecture, later used also in Renaissance architecture.

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