R-value (soils) > Related Articles

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Contents 1 Parent topics 2 Subtopics 3 Other related topics 4 Bot-suggested topics

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• Asphalt (paving) [r]: A mix of bitumen (petroleum tar), aggregate and additives. A typical paving asphalt consists to 90 to 95 percent by weight of aggregate and 5 to 10 % of bitumen. [e]