Durability of FRP Rebars After Four Years of Exposure
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Published:2001
A. Katz, L.C. Bank, M. Puterman, 2001. "Durability of FRP Rebars After Four Years of Exposure", FRPRCS-5: Fibre-reinforced plastics for reinforced concrete structures Volume 1: Proceedings of the fifth international conference on fibre-reinforced plastics for reinforced concrete structures, Cambridge, UK, 16–18 July 2001, Chris J. Burgoyne
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Six types of glass fiber reinforced polymer rods were embedded in concrete blocks in order to study the long-term properties of the rods and the rod-concrete interface. The specimens were submerged in water at 80°C for 14 and 84 days, at 20°C for 4.5 years and in air for 84 days and 4.5 years.
The results indicated a significant increase in the bond strength of smooth rods after 4.5 years in water but no significant change between 4.5 years in air or 84 days in hot water. Scanning Electron Microscopy (SEM) of the surface of the rod indicated significant deterioration of the polymer at the surface of the rods (mainly of those made from polyester) either after exposure to hot water for 84 days or to 20°C water for 4.5 years.
INTRODUCTION
TEST METHOD
RESULTS AND DISCUSSION
PULLOUT BEHAVIOR
SURFACE MICROSCOPY
ACKNOWLEDGMENTS
REFERENCES
