A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Carbon-fiber-reinforced polymer repair to extend service life of corroded reinforced concrete beams
In the present paper, the feasibility and viability of using externally bonded CFRP (carbon fiber reinforced polymer) laminates to enhance the structural capacity of RC (reinforced concrete) beams when applied at various levels of corrosion damage were investigated. The main conclusions are as follows: CFRP repair that consists of one flexural laminate along with U-shaped transverse strips is effective in increasing the strength of corroded RC beams at all levels of corrosion damage (up to 31 % steel mass loss) to levels higher than the strength of the virgin uncorroded RC beam. For example, the ultimate strength of a beam repaired with CFRP laminates at 31 % steel mass loss was about 73 % higher than that of a similar corroded and unrepaired beam and about 31 % higher than that of the virgin beam that was neither corroded nor repaired. CFRP repair significantly reduces the deflection capacity relative to that of the corroded and unrepaired beams. The deflection capacity of the corroded and repaired beams was on average obout 46 % lower than that of the corroded and unrepaired beams.
Carbon-fiber-reinforced polymer repair to extend service life of corroded reinforced concrete beams
In the present paper, the feasibility and viability of using externally bonded CFRP (carbon fiber reinforced polymer) laminates to enhance the structural capacity of RC (reinforced concrete) beams when applied at various levels of corrosion damage were investigated. The main conclusions are as follows: CFRP repair that consists of one flexural laminate along with U-shaped transverse strips is effective in increasing the strength of corroded RC beams at all levels of corrosion damage (up to 31 % steel mass loss) to levels higher than the strength of the virgin uncorroded RC beam. For example, the ultimate strength of a beam repaired with CFRP laminates at 31 % steel mass loss was about 73 % higher than that of a similar corroded and unrepaired beam and about 31 % higher than that of the virgin beam that was neither corroded nor repaired. CFRP repair significantly reduces the deflection capacity relative to that of the corroded and unrepaired beams. The deflection capacity of the corroded and repaired beams was on average obout 46 % lower than that of the corroded and unrepaired beams.
Carbon-fiber-reinforced polymer repair to extend service life of corroded reinforced concrete beams
Verlängerung der Lebensdauer von korrodierten Stahlbetonträgern durch Reparatur mit carbonfaserverstärktem Kunststoff
Maaddawa, Tamer El (author) / Soudki, Khaled (author)
Journal of Composites for Construction ; 9 ; 187-194
2005
8 Seiten, 10 Bilder, 2 Tabellen, 21 Quellen
Article (Journal)
English
Carbon-Fiber-Reinforced Polymer Repair to Extend Service Life of Corroded Reinforced Concrete Beams
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