EXPERIENCE WITH CONTINUOUSLY REINFORCED CONCRETE PAVEMENTS IN VIRGINIA

This paper reports studies of the cracking characteristics of continuously reinforced concrete pavement (CRCP) built in Virginia since 1966 and observations concerning the performance of this type of pavement. Early studies involved crack frequency, in situ width determinatitons, and laboratory examinations of cores. Later studies determined the seasonal movement of cracks and the patterns of crack development with time. All studies were intended to determine the normalcy of characteristics of Virginia CRC pavement as compared to characteristics reported by other agencies. It is concluded from the studies that cracking patterns tend to be fully developed in 2 to 3 years and that an early progressive increase in surface crack widths seems to stabilize after a similar period of time. The core studies showed that cracks are discontinuous in the immediate vicinity of the reinforcing steel and grow progressively wider toward the top and bottom surfaces. This finding is taken as evidence that no danger of steel corrosion exists in pavements having normal crack patterns. The performance of the Virginia CRC pavement is considered good. However, at least 1 project shows severe damage related to inadequate consolidation of the paving concrete. The need for a strong effort toward the development of realistic consolidation specifications is pointed out.

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 14-24
  • Monograph Title: Pavement design and continuously reinforced concrete pavement performance
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00264685
  • Record Type: Publication
  • ISBN: 0309022711
  • Files: TRIS, TRB
  • Created Date: Jan 9 1975 12:00AM