TECHNICAL PAPERS
Mar 21, 2009

Bond Behavior of Near-Surface Mounted FRP Strips Bonded to Modern Clay Brick Masonry Prisms: Influence of Strip Orientation and Compression Perpendicular to the Strip

Publication: Journal of Composites for Construction
Volume 13, Issue 3

Abstract

In this paper the results of 18 pull tests performed on clay brick masonry prisms strengthened with near-surface mounted carbon fiber-reinforced polymer (CFRP) strips are presented. The pull tests were designed to add to the existing database and investigate variables significant to masonry construction. FRP was bonded to solid clay brick masonry; FRP aligned both perpendicular and parallel to the bed joint; and in the case of FRP reinforcement aligned parallel to the bed joint, compression applied perpendicular to the strip was used to simulate vertical compression load in masonry walls. Results including bond strength, critical bond length, and the local bond-slip relationship are presented as well as a discussion on the effect of the new variables on these results.

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Acknowledgments

The writers gratefully acknowledge the support of technical staff of the Civil, Surveying and Environmental Engineering Laboratory at The University of Newcastle. Financial support for this project was provided by the Australian Research Council under Discovery Project DP0559706.

References

ASTM. (1993). “Standard test method for diagonal tension (shear) in masonry assemblages.” ASTM E 519-93, Philadelphia.
DeLorenzis, L., and Teng, J. G. (2007). “Near-surface mounted FRP reinforcement: An emerging technique for strengthening structures.” Composites, Part B, 38(2), 119–143.
Oehlers, D. J., Rashid, R., and Seracino, R. (2008). “IC debonding resistance of groups of FRP NSM strips in reinforced concrete beams.” Constr. Build. Mater., 22(7), 1574–1582.
Petersen, R. B., Masia, M. J., and Seracino, R. (2008). “Experimental verification of finite element model to predict the shear behaviour of NSM FRP strengthened masonry walls.” Proc., 14th Int. Brick and Block Masonry Conf., Sydney, Australia, Paper No. 121.
Rashid, R., Oehlers, D. J., and Seracino, R. (2008). “IC debonding of FRP NSM and EB retrofitted concrete: Plate and cover interaction tests.” J. Compos. Constr., 12(2), 160–167.
Seracino, R., Jones, N. M., Ali, M. S. M., Page, M. W., and Oehlers, D. J. (2007a). “Bond strength of near-surface mounted FRP strip-to-concrete joints.” J. Compos. Constr., 11(4), 401–409.
Seracino, R., Saifulnaz, M. R. R., and Oehlers, D. J. (2007b). “Generic debonding resistance of EB and NSM plate-to-concrete joints.” J. Compos. Constr., 11(1), 62–70.
Standards Australia. (2001). “Masonry structures: Appendix D—Method of test for flexural strength.” AS3700-2001, ASI, Sydney, Australia.
Standards Australia. (2003). “Masonry units, segmental pavers and flags-Methods of test. Method 15: Determining lateral modulus of rupture.” AS/NZS 4456.15:2003, ASI, Sydney, Australia.
Willis, C. R., Yang, Q., Seracino, R., and Griffith, M. C. (2008). “Bond behavior of FRP-to-clay brick masonry joints.” Eng. Struct., submitted.

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Published In

Go to Journal of Composites for Construction
Journal of Composites for Construction
Volume 13Issue 3June 2009
Pages: 169 - 178

History

Received: Apr 20, 2008
Accepted: Oct 18, 2008
Published online: Mar 21, 2009
Published in print: Jun 2009

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Authors

Affiliations

Robert B. Petersen [email protected]
Ph.D. Candidate, Centre for Infrastructure Performance and Reliability, School of Engineering, The Univ. of Newcastle, Callaghan, NSW, Australia (corresponding author). E-mail: [email protected]
Mark J. Masia [email protected]
Senior Lecturer, Centre for Infrastructure Performance and Reliability, School of Engineering, The Univ. of Newcastle, Callaghan, NSW, Australia. E-mail: [email protected]
Rudolf Seracino
Associate Professor, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., Raleigh, NC 27695-7533.

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