TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

Evaluation of Jointed Plain Concrete Pavement with Fiber-Reinforced Polymer Dowels

Accession Number:

01024890

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

In this study, Fiber Reinforced Polymer (FRP) dowel bars were evaluated as load transferring devices for JPCP in laboratory and field under HS-25 equivalent static and fatigue loads and compared their response with JPCP consisting of steel dowels. Analytical modeling of dowel response was carried out in terms of maximum bending deflection, relative deflection, and bearing stress for different parameters such as dowel diameter, spacing, dowel material properties, joint width, and base material properties. Rehabilitation of an existing concrete pavement was carried out using FRP dowels. Both 1.5" and 1.0" diameter FRP dowels were installed in the field with 6", 8", 9" and 12" spacings. Field data collected through automatic data acquisition system included dowel strains and joint deflections, which were used for assessing joint load transfer efficiency (LTE), relative deflection, and pavement performance. This research shows that JPCP with FRP dowels provide very good LTE up to and beyond 90%, which exceeds AASHTO recommendation of 70%. JPCP with FRP dowels provided sufficient LTE after 5 million cycles of fatigue loading under HS-25 loading. FRP dowels were found to require less length than steel dowels for force transfer. Though theoretical peak bearing stress on concrete slab for FRP dowels is higher than steel dowels, average bearing stress values were found to be significantly lower. Good interface between FRP dowels and concrete was found near the joints where peak bearing stresses are present. Field installed FRP JPCP subjected to heavy traffic loading is performing very satisfactorily after four years of installation.

Monograph Accession #:

01020180

Report/Paper Numbers:

06-2112

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Vijay, P V
Hota, GangaRao V.S.
Li, Hui

Pagination:

17p

Publication Date:

2006

Conference:

Transportation Research Board 85th Annual Meeting

Location: Washington DC, United States
Date: 2006-1-22 to 2006-1-26
Sponsors: Transportation Research Board

Media Type:

CD-ROM

Features:

References (14) ; Tables (5)

Subject Areas:

Design; Finance; Highways; Pavements; I22: Design of Pavements, Railways and Guideways

Source Data:

Transportation Research Board Annual Meeting 2006 Paper #06-2112

Files:

BTRIS, TRIS, TRB

Created Date:

Mar 3 2006 10:52AM