FRP–Concrete Bond after 12-Year Exposure in Tidal Waters
Publication: Journal of Composites for Construction
Volume 22, Issue 5
Abstract
The Friendship Trail Bridge linking St. Petersburg to Tampa, Florida, was demolished in 2016. This was the site of 13 fiber-reinforced polymers (FRP) repairs of corroding reinforced concrete piles undertaken in three separate demonstration studies completed in 2003–2004, 2006, and 2008. The repairs used carbon or glass fiber, wet layup or prepreg, and epoxy or polyurethane resins. Installation was by shrink wrap in the initial series and by pressure bagging in the next two. Residual FRP–concrete bond was evaluated in 2015–2016 through 120 pull-off tests conducted on 10 representative repaired piles. Results showed wide variation in the measured pull-off strength depending on the resin type, the number of FRP layers, the prevailing conditions at the time the epoxy was mixed, and how it was placed. Ambient conditions at installation influenced bond in epoxy-based systems. The highest residual bond was recorded in epoxy-based repair on piles that were installed by pressure bagging in 2008.
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Acknowledgments
The authors gratefully acknowledge the support of Nils Olsson, Karl King, and Thomas Capell, Hillsborough County, American Bridge Company, and Speedy Concrete, Tampa. Special thanks to USF graduate student Joseph Scott for his enormous contribution in the site visits.
References
ACI (American Concrete Institute). 2008. Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures. ACI 440.2R-08. Farmington Hills, MI: ACI.
ACI (American Concrete Institute). 2014. Building code requirements for structural concrete. ACI 318-14. Farmington Hills, MI: ACI.
Aguilar, J., D. Winters, R. Sen, G. Mullins, and M. Stokes. 2009a. “Improvement in FRP-concrete bond by external pressure.” Transp. Res. Rec. 2131 (1): 145–154. https://doi.org/10.3141/2131-14.
Aguilar, J., D. Winters, R. Sen, G. Mullins, and M. Stokes. 2009b. Innovative underwater pile repair incorporating cathodic protection. Tampa, FL: Univ. of South Florida.
Aguilar, J., D. Winters, R. Sen, G. Mullins, and M. Stokes. 2010. “FRP-CP system for pile repair in tidal waters.” Transp. Res. Rec. 2150 (1): 111–118. https://doi.org/10.3141/2150-14.
Ahad, N. A., and S. S. S. Yahaya. 2014. “Sensitivity analysis of Welch’s t-test.” In Vol. 1605 of Proc., AIP Conf., 888–893. College Park, MD: American Institute of Physics.
ASTM. 2009. Standard test method for pull-off strength for FRP bonded to concrete substrate. ASTM D7522/D7522M-09. West Conshohocken, PA: ASTM.
Bailey, D. M., V. F. Hock, P. A. Noyce, and M. Restly. 2013. Polymer composite wrapping and cathodic protection system for reinforced concrete piles in marine applications. Champaign, IL: Engineer Research and Development Center.
Banthia, N., A. Abdolrahimzadeh, M. Demers, A. Mufti, and S. Sheikh. 2010. “Durability of FRP-concrete bond in FRP-strengthened bridges.” Concr. Int. 32 (8): 45–51.
Dolan, C., J. Tanner, D. Mukai, H. Hamilton, and E. Douglas. 2009. Research report for evaluating the durability of bonded CFRP repair/strengthening of concrete beams. 12–73. Washington, DC: NCHRP.
Grunenfelder, L., and S. Nutt. 2010. “Void formation in composite prepregs—Effect of dissolved moisture.” Compos. Sci. Technol. 70 (16): 2304–2309. https://doi.org/10.1016/j.compscitech.2010.09.009.
Haber, Z., K. Mackie, and L. Zhao. 2012. “Mechanical and environmental loading of concrete beams strengthened with epoxy and polyurethane matrix carbon fiber laminates.” Constr. Build. Mater. 26 (1): 604–612. https://doi.org/10.1016/j.conbuildmat.2011.06.063.
Hamilton, H. R., J. Brown, J. Tatar, M. Lisek, and N. R. Brenkus. 2017. Durability evaluation of florida’s fiber-reinforced polymer (FRP) composite reinforcement for concrete structures. Gainesville, FL: Univ. of Florida.
Illig, G. 2016. Concrete repair, strengthening and protection. Tampa, FL: Univ. of South Florida.
Judd, N. 1977. “Absorption of water into carbon fibre composites.” Br. Polym. J. 9 (1): 36–40. https://doi.org/10.1002/pi.4980090106.
Karbhari, V. M., and K. Ghosh. 2009. “Comparative durability evaluation of ambient temperature cured externally bonded CFRP and GFRP composite systems for repair of bridges.” Composites Part A: Appl. Sci. Manuf. 40 (9): 1353–1363.
Leng, D. L., R. G. Powers, I. R. Lasa. 2000. “Zinc mesh cathodic protection systems.” In Proc., Annual Conf. and Exposition, Corrosion. 17. Orlando, FL.
Long, M., C. Djelal, S. Kesteloot, B. Bigourdan, P. Le Gac, and J. Szulc. 2012. “Durability of CFRP-Concrete bonding in a marine environment.” In Proc., ECCM15—15th European Conf. on Composite Materials. Venice, Italy.
Mindess, S., and J. Young. 1981. Concrete. Englewood Cliffs, NJ: Prentice-Hall.
Mullins, G., R. Sen, K. S. Suh, and D. Winters. 2004. Underwater FRP pile wrap of the Friendship Trails Bridge. Tampa, FL: Univ. of South Florida.
Mullins, G., R. Sen, K. S. Suh, and D. Winters. 2006. “A demonstration of underwater FRP repair.” Concr. Int. 28 (1): 70–73.
Mullins, G., R. Sen, D. Winters, and A. Schrader. 2007. Innovative pile repair. Hillsborough County, FL.
Myers, J. J. 2007. “Durability of external fiber-reinforced polymer strengthening systems.” In Durability of composites for civil structural applications, edited by V. M. Karbhari, 247–283. Cambridge, UK: Woodhead Publishing Limited.
Myers, J. J., and N. Muncy. 2011. “Bond behavior of externally bonded fiber reinforced polymer laminates subjected to in-situ service loading and environmental conditioning.” In Proc., 4th Int. Conf. Durability and Sustainability of Fibre Reinforced Polymer (FRP) Composites for Construction and Rehabilitation. Quebec City: CDCC 2011 (Fourwaves).
Sen, R. 2015. “Developments in the durability of FRP-concrete bond.” Constr. Build. Mater. 78: 112–125. https://doi.org/10.1016/j.conbuildmat.2014.12.106.
Sen, R., and G. Mullins. 2007. “Application of FRP composites for underwater piles repair.” Comp. Part B Eng. 38 (5–6): 751–758. https://doi.org/10.1016/j.compositesb.2006.07.011.
Sen, R., and G. Mullins. 2010. Underwater FRP repair of corroding piles incorporating cathodic protection. Tampa, FL: Univ. of South Florida.
Sen, R., G. Mullins, J. Aguilar, and D. Winters. 2011. Advances in corrosion repair of piles using FRP. ACI SP-275-30. Farmington Hills, MI: ACI.
Sen, R., G. Mullins, and M. Shahawy. 2008. “FRP repair and strengthening of structurally deficient piles.” Transp. Res. Rec. 2028 (1): 221–230. https://doi.org/10.3141/2028-24.
Sharp, N. 2015. “Effects of moisture on the properties of epoxies and carbon-epoxy composite laminates.” Ph.D. dissertation, School of Mechanical Engineering, Purdue Univ.
Suh, K. S., R. Sen, G. Mullins, and D. Winters. 2008. “Corrosion monitoring of FRP repaired piles in tidal waters.” Spec. Pub. 252: 137–156.
Tatar, J., and H. R. Hamilton. 2016. “Comparison of laboratory and field environmental conditioning on FRP-concrete bond durability.” Constr. Build. Mater. 122: 525–536. https://doi.org/10.1016/j.conbuildmat.2016.06.074.
Walker, L. 2007. “Aerospace grade composite technology for infrastructure.” In Cobrae Conf. 2007. Stuttgart, Germany: Univ. of Stuttgart.
Walpole, R. E., R. H. Myers, S. L. Myers, and K. Ye. 2012. Probability and statistics for engineers and scientists. 9th ed. 791. Boston: Pearson Education.
Weather Underground. 2017. “Weather history for KSPG—December, 2008.” Accessed April 14, 2017. https://www.wunderground.com/history/airport/KSPG/2008/12/18/DailyHistory.html?req_city=&req_state=&req_statename=&reqdb.zip=&reqdb.magic=&reqdb.wmo.
Winters, D., G. Mullins, R. Sen, A. Schrader, and M. Stokes. 2008. “Bond enhancement for FRP pile repair in tidal waters.” J. Compos. Constr. 12 (3): 334–343. https://doi.org/10.1061/(ASCE)1090-0268(2008)12:3(334).
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©2018 American Society of Civil Engineers.
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Received: May 18, 2017
Accepted: Mar 26, 2018
Published online: Jul 4, 2018
Published in print: Oct 1, 2018
Discussion open until: Dec 4, 2018
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