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