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Publication Details

TechBrief: What Makes Portland Cement Concrete (PCC) Pavements Rough?

Research/Reference: useful for researchers doing further work in the pavement area as well as those developing improved testing and design procedures. Includes documents of historical value.

Primary Topic: Surface and Other Considerations

Description: 4-page technical brief that discusses a study to investigate the changes in roughness of rigid pavements over time and their relationship to design factors, subgrade conditions and climatic conditions. Key findings were that there was a strong relationship between roughness and faulting, JRCP pavements with a higher roughness value were associated with high precipitation, higher moisture content, thicker slabs, longer joint spacing, and higher PCC modulus values, and CRCP pavements maintain a relatively constant roughness value over time.

FHWA Publication Number: FHWA-RD-98-148

Publication Year: 1998

Document Links: PDF (file size: 0.1 mb)

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Updated: 02/20/2015

United States Department of Transportation - Federal Highway Administration