EVALUATION OF CONTINUOUSLY REINFORCED CONCRETE PAVEMENTS IN INDIANA
The study consisted of the following sequential steps: (1) Pavement condition surveys, (2) Detailed field testing and evaluation, (3) Laboratory testing program. A statisticsl analysis of the condition survey data showed that subbase type, methods of steel placement and steel fabrication, concrete slump, and age of pavement since opened to traffic were significant contributors to pavement performance. The results of the detailed field and laboratory studies showed that failures in CRCP are a function of a number of interacting variables. Generally higher pavement deflection, decreased pavement stiffness, wider crack widths, and erratic, non-uniform crack patterns were a associated with filed pavement condition. The support conditions under CRCP were of particular significance relative to performance. Well-compacted granular subbases with high stability and good permeability (internal drainage) showed excellent performance. Failures on CRCP were found to be correlated with concrete having a relatively low bulk density and modulus of elasticity. It was observed that paving concrete with a relatively higher slump (minimum of 1.5 in.) was more suited to CRCP with respect to good performance. An analysis of CRCP design revealed that use of 9.6 percent steel was, at best, marginal. There were further indications that current CRCP thickness design may be inadequate to withstand the traffic loads impased on Interstate Highways. Finally, the report contains a set of construction and design guidelines that should help to improve the performance of CRCP in Indiana.
- Find a library where document is available. Order URL: http://worldcat.org/isbn/62010
- Report conducted in cooperation with the Indiana State Highway Commission.
Purdue University/Indiana Department of Transportation JHRPPurdue University, School of Civil Engineering
West Lafayette, IN United States 47907-1284
- Faiz, A
- Publication Date: 1975-10
- Features: Appendices; Figures; References; Tables;
- Pagination: 355 p.
- TRT Terms: Bulk density; Concrete pavements; Continuously reinforced concrete pavements; Cracking; Deflection; Evaluation; Field tests; Laboratory tests; Modulus of elasticity; Pavement design; Pavement performance; Pavements; Slump test; Steel; Stiffness; Subbase (Pavements); Thickness
- Uncontrolled Terms: Slumps; Subbase
- Old TRIS Terms: Pavement deflection
- Subject Areas: Highways; Pavements;
- Accession Number: 00129355
- Record Type: Publication
- ISBN: 6-20-10
- Report/Paper Numbers: JHRP-75-17 Final Rpt.
- Files: TRIS
- Created Date: May 14 1976 12:00AM