LTPP Data Analysis, Validation of Guidelines for K-Value Selection and Concrete Pavement Performance Prediction: LTPP TechBrief

8232041997PDFBriefFHWA-RD-96-198Concrete pavementsPavement performanceBase course (Pavements)SoilsPavement layersPavement designMaterialsSlabsCurlingAASHTO GuideLong Term Pavement Performance (LTPP)K-valuesUnited StatesUnited States. Federal Highway AdministrationERES Consultants, Inc.Turner-Fairbank Highway Research CenterUnited States. Federal Highway AdministrationLong-Term Pavement Performance Program (U.S.)Richter, Cheryl AllenFederal Highway AdministrationConcrete pavement performance depends greatly on the support that it receives from the base course and underlying soil layers as well as Tech Report support-related factors such as slab curling and warping and slab-base friction. The National Cooperative Highway Research Program (NCHRP) Project 1-30, "Support Under Concrete Pavements" developed improved procedures for estimating support design inputs and designing concrete pavements. This Long Term Pavement Performance (LTPP) data analysis was conducted to further test and verify the improved pavement support guidelines and the improved American Association of State Highway and Transportation Officials (AASHTO) performance model proposed in NCHRP Project 1-30 using the design, materials, climate, traffic, and performance data available in the LTPP database.75