The Federal Highway Administration (FHWA) released 2 publications on jointed precast concrete pavements (JPrPCP).
1
The “Guide Specification for Jointed Precast Concrete Pavement (JPrCP)” is a 23-page tech breif that includes considerations for the use of JPrCP based on the best practices observed from experiences of numerous highway agencies. This document provides best practices for the use of JPrCP.
JPrCP technology has gained wide acceptance in the United States (US) for rapid repair and rehabilitation of concrete pavements, and for reconstruction of heavily trafficked asphalt intersections and ramps. This widespread use in the US is fairly recent, with most projects in service fewer than 10 years. JPrCP technology is used most frequently where maintenance of traffic limits work zones to overnight durations and where long-life pavement performance is needed. The service life of intermittent JPrCP repairs is expected to be at least 20 years. Longer-length applications of JPrCP are expected to serve for 40 years or more without a need for corrective treatment except griding to restore desired surface characteristics.
Panel fabrication, storage, delivery and installation are unique steps leading to a satisfactory JPrCP experience. This guide specification for JPrCP has been developed based on knowledge ofthe best practices from thirty-one highway agencies throughout the US that have constructed at least one JPrCP project up to ten or more such projects. It may be used by these and other highway agencies to create state-of-the-art guidance, with modifications needed to incorporateindividual highway agency format and standards.
For the guide spec, please click on image above, or go to: https://www.fhwa.dot.gov/pavement/concrete/pubs/hif19017.pdf
2
“Jointed Precast Concrete Pavement (JPrCP) Panel Fabrication and Installation Checklists” is a 12-page tech brief intended for agency/owner personnel, and recommended for contractors who place JPrCP.
PCP technology is gaining wider acceptance in the U.S. for rapid repair and rehabilitation of concrete pavements, as well as for reconstruction of heavily trafficked asphalt concrete intersections. Widespread use in the U.S. is fairly recent, with most projects in service less than about 10 years. PCP technology is being used for intermittent repairs (both full-depth repairs and full panel replacement) and for continuous applications (longer- length/wider-area rehabilitation) with service life expectations of at least 20 years for repairs and at least 40 years for continuous applications, without significant future corrective treatment. Available PCPs include jointed PCP with reinforced or prestressed panels installed singly or in a continuous series.
This publication includes a checklist for users to actively check off as the project is underway. The sheet contains Item Descriptions with a “Status” for the user to mark throughout the project. On the form, the user will:
Description column: Check each applicable item within each applicable checklist
Status column: User will mark “YES”,”NO”, or “NOTE”
Item Descriptions:
A. FABRICATED PANEL PRE-SHIPPING CHECKLIST
B. PANEL POST-SHIPPING (AT SITE) CHECKLIST
C. ON-SITE EQUIPMENT CHECKLIST
D. ON-SITE MATERIALS CHECKLIST
E. WORK AREA PREPARATION CHECKLIST
F. PANEL PLACEMENT CHECKLIST
G. DOWEL BAR AND TIE BAR SLOT GROUTING CHECKLIST
H. DOWEL BAR SLOT PATCHING CHECKLIST, IF GROUT NOT USED
I. CLEAN UP OPERATION and OPENING TO TRAFFIC CHECKLIST
For the 12-page checklist publication, please click on image above, or go to: https://www.fhwa.dot.gov/pavement/pubs/hif19016.pdf