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How do the new smoother, blacker asphalt and the original asphalt differ?

Ken Little

Different “methods and materials” are used by the N.C. Department of Transportation based on different conditions, N.C. DOT spokeswoman Tammy Stewart said.

“And we are always looking at cost effectiveness,” she said.

Stewart said there is a difference between asphalt from an asphalt plant and a rock seal.

“The smoother pavement usually comes from an asphalt plant mix. But recently, with our rock seals, we have applied a slurry mix after the rock seal and this application produces a smoother surface,” Stewart said.

Related links:

How does the N.C. DOT determine which roads require repaving?

Are there plans to repave N.C. 133 between Leland and Southport?

User-contributed question by:
Aaron Schoonmaker

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