Independent environmental effects on durability of fiber-reinforced polymer wraps in civil applications: A review

Böer, Paul; Holliday, Lisa; Kang, Thomas H.‐K.

doi:10.1016/j.conbuildmat.2013.06.077

Cited by 116 publications

(50 citation statements)

References 20 publications

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“…A comprehensive review of the durability of FRP composites for civil engineering applications in aqueous environments has been conducted by Karbhari [20]. Moreover, Böer et al [31,58] recently reviewed the latest durability studies of FRP composites used in the construction sector. The analytical models that are relevant to the transport of moisture in structural composites have been reviewed by Bond and Smith [59].…”

Section: Effect Of Moisture On Frp Compositesmentioning

confidence: 98%

“…Various mechanisms of degradation for different types of resin, such as epoxy, polyester and vinyl-ester, are well documented. In general, moisture can change resin through plasticisation, swelling, cracking and hydrolysis [20,30,31]. The high moisture absorption susceptibility of adhesives stems from their surface topology [32] and resin polarity [33].…”

Section: Effect Of Moisture On Resins and Adhesivesmentioning

confidence: 99%

See 1 more Smart Citation

Environmental durability of adhesively bonded FRP/steel joints in civil engineering applications: State of the art

Heshmati

Haghani

Al‐Emrani

2015

Composites Part B: Engineering

194

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Section: Effect Of Moisture On Frp Compositesmentioning

confidence: 98%

Section: Effect Of Moisture On Resins and Adhesivesmentioning

confidence: 99%

Environmental durability of adhesively bonded FRP/steel joints in civil engineering applications: State of the art

Heshmati

Haghani

Al‐Emrani

2015

Composites Part B: Engineering

194

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“…Additionally, FRP application is more common in repair or rehabilitation fields, because it is easily attached to the surface of structures [3,4]. There are typically three popular types of fibers, including carbon, glass and aramid fiber.…”

Section: Introductionmentioning

confidence: 99%

Long-Term Flexural Behaviors of GFRP Reinforced Concrete Beams Exposed to Accelerated Aging Exposure Conditions

2014

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This study investigates the impact of accelerated aging conditions on the long-term flexural behavior and ductility of reinforced concrete (RC) members with glass fiber-reinforced polymer (GFRP) bars (RC-GFRP specimen) and steel bars (RC-steel specimen). A total of thirty six specimens were designed with different amounts of reinforcement with three types of reinforcing bars (i.e., helically wrapped GFRP, sand-coated surface GFRP and steel). Eighteen specimens were subjected to sustained loads and accelerated aging conditions (i.e., 47 °C and 80% relative humidity) in a chamber. The flexural behavior of specimens under 300-day exposure was compared to that of the companion specimens without experiencing accelerated aging conditions. Results indicate that the accelerated aging conditions reduced flexural capacity in not only RC-steel, but also RC-GFRP specimens, with different rates of reduction. Different types of GFRP reinforcement exhibited different rates of degradation of the flexural capacity when embedded in concrete under the same exposure conditions. Several existing models were compared with experimental results for predicting the deflection and deformability index for specimens. Bischoff and Gross's model exhibited an excellent prediction of the time-dependent deflections. Except for the deformability index proposed by Jaeger, there was no general trend related to the aging duration. This study recommends the need for further investigation on the prediction of the deformability index.

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“…The strength of a GFRP fiber and resin matrix can be reduced when a sample is subjected to alkaline or saline environments . When analyzing the chemistry for the two polymer matrices chosen in this study, the ester bond attached to the backbone of the unsaturated polyester can undergo a hydrolysis reaction that may be accelerated by acid or alkali.…”

Section: Background and Research To Datementioning

confidence: 99%

Durability study on glass fiber reinforced polymer soil nail via accelerated aging test and long‐term field test

et al. 2015

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Replacing steel reinforcements with glass fiber reinforced polymer (GFRP) bars has emerged as one of the most promising solutions to the problem of corrosion in geotechnical engineering. Accelerated aging and field tests were conducted to investigate the durability of GFRP bars that were used as soil nails in slope reinforcement. Two types of E‐glass/(vinylester and unsaturated polyester) were immersed in alkaline and saline solutions for 60 d, 180 d and 360 d. Mechanical and physical experiments were carried out to obtain the tensile strength and identify the reasons for damage and strength reduction. A pullout test was carried out after the GFRP soil nails were embedded in a slope for three years. The accelerated aging test results showed that alkaline conditions had a larger influence on the degradation of GFRP bars than did saline solutions and that strength reduction generally occurred at an earlier stage for the alkaline conditions than for the saline solution. The corrosion resistance of an unsaturated polyester bar is much lower than that of the vinylester bar, and the bar diameter has a certain impact. From the field test results, it can be seen that the GFRP soil nails are durable and perform well at the task of supporting a slope. The technology for sensing fiber Bragg gratings (FBG) is very convenient for monitoring soil nails and is suitable for long‐term observation. POLYM. COMPOS., 38:2863–2873, 2017. © 2015 Society of Plastics Engineers

show abstract

Independent environmental effects on durability of fiber-reinforced polymer wraps in civil applications: A review

Cited by 116 publications

References 20 publications

Environmental durability of adhesively bonded FRP/steel joints in civil engineering applications: State of the art

Environmental durability of adhesively bonded FRP/steel joints in civil engineering applications: State of the art

Long-Term Flexural Behaviors of GFRP Reinforced Concrete Beams Exposed to Accelerated Aging Exposure Conditions

Durability study on glass fiber reinforced polymer soil nail via accelerated aging test and long‐term field test

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