Experimental Bond Behavior of FRP Sheets Glued on Brick Masonry
Publication: Journal of Composites for Construction
Volume 15, Issue 1
Abstract
This paper deals with the experimental characterization of the mechanical tensile and shear bond behavior of fiber-reinforced polymer (FRP) sheets externally glued on masonry prisms, in terms of load capacity and stress distribution along the bonded length. The brick masonry adopted tries to replicate ancient brick masonry, by using handmade low-strength solids bricks and low-strength lime-based mortar. Key parameters relative to the FRP-masonry interface response, particularly bonded length, FRP materials, anchor scheme adopted, and shape of masonry substrate, were studied. Finally, an analytical bond stress-slip formulation was developed, allowing deducing local bond stress-slip curves directly from the experiments.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The financial support provided by the Portuguese Science and Technology Foundation through Project No. UNSPECIFIEDPOCTI/ECM/38071/2001 is acknowledged. FRP composites and premixed mortar used in the laboratory tests were gently offered by BETTOR MBT and MAPEI, respectively, to whom the writers are grateful. The second writer would like to express his gratitude to CONACYT for the scholarship granted.
References
Accardi, M., and La Mendola, L. (2004). “Stress transfer at the interface of bonded joints between FRP and calcarenite natural stone.” Proc., IV Int. Seminar of Structural Analysis of Historical Constructions, Taylor and Francis, London, 867–874.
Aiello, M. A., and Sciolti, M. S. (2006). “Bond analysis of masonry structures strengthened with CFRP sheets.” Constr. Build. Mater., 20, 90–100.
Aiello, M. A., Sciolti, M. S., and Triantafillou, T. C. (2007). “FRP-strengthened masonry: Bond aspects.” FRPRCS-8 (CD-ROM), Univ. of Patras, Patras, Greece.
ASTM. (2002). “Standard test method for pull-off strength of coatings using portable adhesion testers.” D4541-02, West Conshohocken, Pa.
Bakis, C. E., et al. (2002). “Fiber-reinforced polymer composites for construction-state-of-the-art review.” J. Compos. Constr., 6(2), 73–87.
Basilio, I. (2007). “Strengthening of arched masonry structures with composites materials.” Ph.D. thesis, Universidade do Minho, Guimarães, Portugal, ⟨www.civil.uminho.pt/masonry⟩ (July 13, 2009).
Bizindavyi, L., and Neale, W. (1999). “Transfer lengths and bond strength for composites bonded to concrete.” J. Compos. Constr., 3(4), 153–160.
Bonaldo, E., Barros, J. O., and Lourenço, P. B. (2005). “Bond characterization between concrete substrate and repairing SFRC using pull-off testing.” Int. J. Adhes. Adhes., 25, 463–474.
Casareto, M., Oliveri, A., and Romelli, A. (2002). “Strengthening of masonry: Opportunities and challenges in the use of composites.” M.S. thesis, Univ. of Genoa and Univ. of Missouri Rolla, Genoa and Rolla, Mo.
Chen, J., Yang, Z., and Holt, G. (2001). “FRP or steel plate to concrete bonded joints: Effects of test methods on experimental bond strength.” Steel Compos. Struct., 1(2), 231–244.
Cosenza, E., Manfredi, G., Occhiuzzi, A., and Pecce, M. R. (2000). “Toward the investigation of the interface behaviour between tuff masonry and FRP fabrics.” Mechanics of masonry structures strengthened with FRP materials, Libreri Cortina, Padova, Italy.
De Lorenzis, L., Miller, B., and Nanni, A. (2001). “Bond of FRP laminates to concrete.” ACI Mater. J., 98(3), 256–264.
De Lorenzis, L., and Zavarise, G. (2008). “Modeling of mixed-mode debonding in the peel test applied to superficial reinforcements.” Int. J. Solids Struct., 45, 5419–5436.
De Lorenzis, L., and Zavarise, G. (2009). “Interfacial stress analysis and prediction of debonding for a thin plate bonded to a curved substrate.” Int. J. Non-Linear Mech., 44(4), 358–370.
fib. (2001). “Externally bonded FRP reinforcement for RC structures.” Bulletin No. 14, Lausanne, Switzerland.
Grande, E., Imbimbo, M., and Sacco, E. (2008). “FRP-strengthening of masonry structures: Effect of debonding phenomenon.” Proc., VI Int. Conf. on Structural Analysis of Historical Constructions, Taylor and Francis, London, 1017–1023.
ICOMOS. (2001). Recommendations for the analysis, conservation and structural restoration of architectural heritage, International Scientific Committee for Analysis and Restoration of Structures of Architectural Heritage, Paris.
International Organization for Standardization. (1993a). “Plastics: Determination of tensile properties. Part 1: General principles.” ISO 527-1, Geneva, Switzerland.
International Organization for Standardization. (1993b). “Plastics: Determination of tensile properties. Part 2: Test conditions for molding and extrusion plastics.” ISO 527-2, Geneva, Switzerland.
International Organization for Standardization. (1997). “Plastics determination of tensile properties, Part 5: Test conditions for unidirectional fibre-reinforced plastics composites.” ISO 527-5, Geneva, Switzerland.
Lee, Y. J., Boothby, T. E., Bakis, C. E., and Nanni, A. (1999). “Slip modulus of FRP sheets bonded to concrete.” J. Compos. Constr., 3(4), 161–167.
Mazzotti, C., Savoia, M., and Ferracuti, B. (2009). “A new single-shear setup for stable debonding of FRP-concrete joints.” Constr. Build. Mater., 23, 1529–1537.
National Research Council of Italy. (2004). “Guide for the design and construction of externally bonded FRP systems for strengthening existing structures.” CNR-DT200, Rome.
Panizza, M., Garbin, E., Valluzzi, M. R., and Modena, C. (2008). “Bond behaviour of CFRP and GFRP laminates on brick masonry.” Proc., VI Int. Conf. on Structural Analysis of Historical Constructions, Taylor and Francis, London, 763–770.
Shrive, N. G. (2006). “The use of fibre reinforced polymers to improve seismic resistance of masonry.” Constr. Build. Mater., 20, 269–277.
Täljsten, B. (1997). “Defining anchor lengths of steel and CFRP plates bonded to concrete.” Int. J. Adhes. Adhes., 17(4), 319–327.
Yuan, H., Teng, J. G., and Seracino, R. (2004). “Full-range behavior of FRP to concrete bonded joints.” Eng. Struct., 26, 553–565.
Information & Authors
Information
Published In
Copyright
© 2011 ASCE.
History
Received: Oct 24, 2009
Accepted: Jun 4, 2010
Published online: Jun 9, 2010
Published in print: Feb 2011
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.