TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

Effect of Varied Surface Roughness, Putty Thickness, and Concrete Strength on the Interfacial Bond Strength of FRP to Concrete

Accession Number:

01045909

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

The use of bonded fiber reinforced polymer (FRP) sheets for upgrade or repair of aging and deteriorating concrete structure has emerged as a viable and cost effective method. Previous research has identified several items that influence FRP-concrete bond strength including concrete strength, type of FRP laminate, the number of layers of the FRP laminate, and the bonding agent or epoxy saturant used. To date, limited research has been conducted on studying the influence of surface preparation (i.e. surface roughness) on bond performance. To that end, an experimental program was undertaken to investigate the effect of a broad range of surface roughnesses and putty thickness on bond strength. A laser profilometer device has been developed at the University of Missouri-Rolla that can characterize surface roughness using laser stripping and image analysis. This devise was used in conjunction with water-jet technology to create a broad range of surface roughnesses that were evaluated within the context of this study. The effects of surface roughness on bond performance for two different commercially available externally bonded laminate systems were investigated. These systems were separated into two series of tests. In total 62 specimens were produced, utilizing three test methods to study bond behavior, namely a flexure test and two surface tests (torsion and pull-off). The different grades of roughness were obtained from water jetting by the rotary jet method. The effect of surface roughness and putty thickness on the bond performance of FRP sheets to concrete is presented in this paper.

Monograph Accession #:

01042056

Report/Paper Numbers:

07-2736

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Myers, John J
Shen, Xianlin
Maerz, Norbert

Pagination:

18p

Publication Date:

2007

Conference:

Transportation Research Board 86th Annual Meeting

Location: Washington DC, United States
Date: 2007-1-21 to 2007-1-25
Sponsors: Transportation Research Board

Media Type:

CD-ROM

Features:

Figures; Photos; References (12) ; Tables (12)

Uncontrolled Terms:

Water jetting

Geographic Terms:

Rolla (Missouri)

Subject Areas:

Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete

Source Data:

Transportation Research Board Annual Meeting 2007 Paper #07-2736

Files:

TRIS, TRB

Created Date:

Feb 8 2007 7:26PM