Masters Theses
Abstract
"The use of externally bonded fiber reinforced polymer (FRP) sheets to strengthen and rehabilitate existing concrete structures has recently received a great deal of attention within the Civil Engineering community. Numerous experimental studies have demonstrated the effectiveness of externally FRP strengthened reinforced concrete (RC) structures. However, many gaps still exist in the knowledge that is required in order for the technique to gain widespread acceptance. For instance, the bond between FRP and concrete as well as the wide variety of bond failure modes are incompletely understood and require further investigation. The overall performance of the system depends highly upon the bond quality between the concrete and the FRP laminates. Low bond strength can cause delamination and result in a premature failure of a repaired structure.
It was reported that the failure of a reinforced concrete member strengthened with FRP laminates may be caused by crushing of concrete, rupture of FRP laminates, or by the de-lamination of the FRP sheet. When a peeling or de-lamination failure can be avoided, a more effective engagement of the FRP sheet occurs which results in more efficient use of material. Previous research has noted that several items influence FRP- concrete bond strength including concrete strength, type of FRP laminate, number of layers of the FRP laminate, putty thickness and the bonding agent or epoxy saturant used. Others have also reported that the surface condition or roughness prior to strengthening has an influence 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. Concrete with different compressive strength were used in four different phases"--Abstract, page iii.
Advisor(s)
Myers, John
Committee Member(s)
Maerz, Norbert H.
Galecki, Greg
Chen, Genda
Department(s)
Civil, Architectural and Environmental Engineering
Degree Name
M.S. in Civil Engineering
Publisher
University of Missouri--Rolla
Publication Date
Fall 2002
Pagination
xvii, 181 pages
Note about bibliography
Includes bibliographical references (pages 175-180).
Rights
© 2002 Xianlin Shen, All rights reserved.
Document Type
Thesis - Restricted Access
File Type
text
Language
English
Subject Headings
Fiber-reinforced plasticsConcrete beams -- Maintenance and repair
Thesis Number
T 8172
Print OCLC #
52731320
Electronic OCLC #
1028578285
Recommended Citation
Shen, Xianlin, "Effect of surface roughness and putty thickness on the bond performance of FRP laminates" (2002). Masters Theses. 2261.
https://scholarsmine.mst.edu/masters_theses/2261
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