Behavior and performance of continuously reinforced concrete pavement

Moon C. Won, Seongcheol Choi, Jeonghee Nam

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Continuously reinforced concrete pavement (CRCP) allows the concrete to form cracks to relieve stresses resulting from temperature and moisture variations. The cracks are held tight by longitudinal reinforcement. CRCP performance has been quite satisfactory in Texas and the Texas Department of Transportation (TxDOT) made it a policy to use CRCP when a rigid pavement is selected for a project. To further enhance CRCP performance, TxDOT sponsored several research studies; this paper presents the findings made so far. Extensive field evaluations found (1) almost no correlations between crack spacing and crack width, (2) crack widths decreasing over time, and (3) almost no changes in load transfer efficiencies at cracks between winter and summer. These findings contradict the hypotheses widely accepted in pavement research community. Existing punchout mechanisms were evaluated for their validity. It appears that other mechanisms are more prevalent. Many seeming punchouts are not truly structural distresses; rather, they are due to horizontal cracking at the mid-depth of the slab, which can be corrected by proper selection of materials and designs. Based on these findings, efforts are underway at TxDOT to improve design, material selection, and construction practices to further enhance the performance of CRCP.

Original languageEnglish
Title of host publication9th International Conference on Concrete Pavements
Subtitle of host publicationThe Golden Gate to Tomorrow's Concrete Pavements
Pages94-110
Number of pages17
StatePublished - 2008
Event9th International Conference on Concrete Pavements: The Golden Gate to Tomorrow's Concrete Pavements - San Francisco, CA, United States
Duration: Aug 17 2008Aug 21 2008

Publication series

Name9th International Conference on Concrete Pavements: The Golden Gate to Tomorrow's Concrete Pavements
Volume1

Conference

Conference9th International Conference on Concrete Pavements: The Golden Gate to Tomorrow's Concrete Pavements
CountryUnited States
CitySan Francisco, CA
Period08/17/0808/21/08

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  • Cite this

    Won, M. C., Choi, S., & Nam, J. (2008). Behavior and performance of continuously reinforced concrete pavement. In 9th International Conference on Concrete Pavements: The Golden Gate to Tomorrow's Concrete Pavements (pp. 94-110). (9th International Conference on Concrete Pavements: The Golden Gate to Tomorrow's Concrete Pavements; Vol. 1).