The History of Asphalt - Reliable Paving
Asphalt, or bitumen, is a viscous, black, almost solid form of oil. It is found naturally, and also in a refined state. Its most common use nowadays is in roads (where approximately 70% of asphalt goes). Most people regard it as a generally new invention. However, asphalt actually has a long history, going back to ancient times, where it had ...
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