Effect of Elevated Temperatures on a Fiber Composite Used to Strengthen                Concrete Columns

Cleary, Douglas; Cassino, Christopher D.; Tortorice, Rosie; Newell, James A.; Tyers, Bradley W.

doi:10.1177/0731684403022010002

Cited by 24 publications

(10 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Until recently, no fire tests had been reported on the fire performance of FRP‐strengthened (wrapped) columns. Saafi & Romine99 and Clearly et al 100. have reported the results of high‐temperature residual strength tests on FRP‐wrapped cylinders.…”

Section: Frps and Firementioning

confidence: 99%

Response to fire of concrete structures that incorporate FRP

Bisby

Green

Kodur

2005

Progress Structural Eng Maths

149

View full text Add to dashboard Cite

After more than twenty years of research investigating fibre-reinforced polymers (FRPs) for reinforcing and strengthening concrete structures, FRPs are now widely recognized as useful materials in the ongoing struggle against infrastructure deterioration. However, applications of FRPs in the field have been limited primarily to bridges, where fire is not a primary consideration during design. Because FRP materials are combustible and susceptible to deterioration of mechanical and bond properties at only modestly elevated temperatures, there is legitimate concern that FRP reinforcing and strengthening systems for concrete will perform poorly in fire. This paper presents a review of research conducted to investigate the fire performance of FRP materials for infrastructure applications. Also presented is an overview of an ongoing research program that is currently underway at Queen's University and the National Research Council of Canada (NRC) to investigate the performance in fire of FRP-strengthened reinforced concrete slabs, beams, and columns. This work has demonstrated that FRP strengthened concrete structures can be protected to provide sufficient fire endurance. Recommendations for future research are provided.

show abstract

Section: Frps and Firementioning

confidence: 99%

Response to fire of concrete structures that incorporate FRP

Bisby

Green

Kodur

2005

Progress Structural Eng Maths

149

View full text Add to dashboard Cite

show abstract

“…On the other hand, in the FRP system, the combination is accomplished using epoxy resins. The epoxy resin in which the highly-resistant FRP fibres are embedded is susceptible, among others, to elevated temperatures at which it vitrifies [1][2][3][4][5][6][7]. The authors of these tests indicate that despite the susceptibility of FRP systems, it is possible to achieve satisfactory load bearing capacity under the condition of applying insulation, which lowers the temperature inside an element and shall protect the reinforcement against failure.…”

Section: Introductionmentioning

confidence: 98%

Confined concrete elements with PBO-FRCM composites

Trapko

2014

Construction and Building Materials

View full text Add to dashboard Cite

“…Cleary et al [17] investigated the residual strength of glass fiber-reinforced polymer (GFRP) confined concrete cylinders exposed to high temperatures and then loaded in compression to failure. The cylinders were wrapped with two continuous layers of GFRP, which were made with a polymer resin that had a high glass transition temperature of 121°C.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of cement and plaster layers in protection of FRP confined concrete exposed to high temperatures

Mostefa

Ghernouti

Sebaibi

2015

Journal of Adhesion Science and Technology

View full text Add to dashboard Cite

In recent years, fiber-reinforced polymers (FRPs) materials have shown great potential as materials for repair and reinforced concrete structures such as beams or columns by externally bonding FRP sheet(s) onto the surface of substrate concrete structures. However, the performance of FRP systems exposed to fire is a serious concern due to the combustibility of FRPs. This study introduces the results of an experimental investigation on the behavior of the circular columns of concrete under a load of axial compression, confined by an envelope of composite materials (carbon fiber and glass fiber) and protected by a layer of mortar cement or plaster coating, after they have been subjected at various temperature (23, 120, and 350°C). The specific objectives of this study are verifying the applicability and the effectiveness of the proposed technique to improve the behavior of concrete in fire resistance and evaluate the effect of composite materials and the layer coating type used. The results indicated that protecting heat circular confined columns, with a layer of mortar cement or plaster has a significant effect on the axial strength and the ductility. It was shown that the ultimate load and axial strain of heated columns can be restored up to the original level or greater than those of unheated columns. However, the effect of a layer of plaster is more significant than a layer of mortar cement. So this coating system would enhance fire resistance of the FRP, safety and reliability of FRP reinforced concrete structures.

show abstract

Effect of Elevated Temperatures on a Fiber Composite Used to Strengthen Concrete Columns

Cited by 24 publications

References 13 publications

Response to fire of concrete structures that incorporate FRP

Response to fire of concrete structures that incorporate FRP

Confined concrete elements with PBO-FRCM composites

Effectiveness of cement and plaster layers in protection of FRP confined concrete exposed to high temperatures

Contact Info

Product

Resources

About