Monitoring and modeling of pavement response and performance task B : New York Pooled Fund Project TPF-5 (121) volume 3, I90

Technical report.PDFTech ReportFHWA/OH-2012/08CPooled Fund project TPF-5(121)State job no. 134287Agreement no. 21182Pavement designPavement performancePavement maintenanceMathematical modelsOhioOhio. Dept. of Transportation. Innovation, Research, and Implementation SectionSargand, Shad M.Khoury, Issam S.Hatton, DrewOhio Research Institute for Transportation and the EnvironmentOhio. Dept. of Transportation. Innovation, Research, and Implementation SectionNew York (State). Dept. of TransportationUnited States. Federal Highway AdministrationNTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and PerformanceNTL-HIGHWAY/ROAD TRANSPORTATION-Construction and MaintenanceNTL-HIGHWAY/ROAD TRANSPORTATION-DesignUS Transportation CollectionThis research presents the evaluation and comparison of two Portland-cement concrete (PCC) pavement testsections with cement-treated permeable bases (CTPB) and dense-graded aggregate bases (DGAB) on the Interstate90 Thruway in New York. Two instrumented test sections were constructed to assess rigid pavement performancewith CTPB compared to DGAB. The first test section had a DGAB layer only, while the second section had a CTPBlayer above the DGAB layer. Continual environmental data were collected and dynamic testing was conducted toevaluate the load response of each test section.The results from the environmental monitoring show that the CTPB section had higher strains and began toexperience higher edge deflections after a year of service. The moisture probes indicated the CTPB did not affectsubgrade moisture content. Dynamic truck load tests indicated the CTPB section had higher mid-slab strains andgreater transverse joint deflections. The higher strains and deflections in the environmental and dynamic tests wereattributed to the rigid CTPB layer, which caused a loss of support at the slab edges. This study found there were nobenefits from the CTPB, and that the rigid base layer had a negative impact on early-age pavement performance