Concrete roads are a common sight. Many people may not know, however, that Detroit was the first city to have a concrete road installed. This one-mile long road was constructed in 1909, and cost $13,492.83. Currently, about 30% of the interstate highways throughout the United States have concrete pavement. Paving Industry Highlights The U.S. paving industry is a major employer. According to 2017 figures, 195,603 businesses employed 284,626 individuals. This industry also brings in substantial revenue. In 2017, for example, this revenue amounted to $36 billion. How Concrete Paving Is Made Concrete is made with a combination of different aggregates, […]
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