Improved Prediction Models for PCC Pavement Performance-Related Specifications.Volume 1. Final Report

摘要

The current performance-related specifications (PRS) methodology has been underdevelopment by the Federal Highway Administration (FHWA) for several years and has now reached a level at which it can be implemented by State highway agencies. PRS for highway pavements depend heavily on performance prediction models to determine the impact of varying levels of construction quality. This study focused on the improvement of the key distress and smoothness prediction models used in the PRS for jointed plain concrete pavement (JPCP). Performance models for transverse joint faulting, transverse slab cracking, transverse joint spalling, and smoothness (International Roughness Index (IRI)) were evaluated and then improved substantially.