A modified pull-out test for bond of near-surface mounted FRP rods in concrete

Lorenzis, Laura De; Rizzo, Andrea; Tegola, Antonio La

doi:10.1016/s1359-8368(02)00052-5

Cited by 210 publications

(119 citation statements)

References 3 publications

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“…It becomes a hot topic in concrete strengthening since the new technique was first used in Sweden in 1940s (Asplund 1949). Large amount of theoretical and experimental work were performed, including bond performance between NSM FRP and concrete (De Lorenzis et al 2002, 2007Galati and De Lorenzis 2009;Soliman et al 2011;Yang et al 2009) , study on flexural strengthening (Al-Mahmoud et al 2012;Capozucca 2009;Kotynia 2012;Kreit et al 2011;Oehlers et al 2008;Oudah and EI-Hacha 2012;Wahab et al 2011;Wang et al 2011;Yao et al 2008) and shearing strengthening (Dias and Barros 2013) of concrete structures with NSM FRP.…”

Section: Introductionmentioning

confidence: 99%

Bond performance between NSM FRP rods and concrete using ECC as bonding materials

Yang¹,

Wang²,

Fang³

et al. 2015

Proceedings of the Second International Conference on Performance-Based and Life-Cycle Structural Engineering (PLSE 2015)

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The pull-out test of near-surface-mounted (NSM) FRP (fiber-reinforced plastics) rod from concrete was performed using engineered cementitious composites (ECC) as bonding materials. The feasibility of cementitious materials in NSM FRP strengthened concrete was then analyzed. Carbon FRP (CFRP) rods and Basalt FRP (BFRP) rods with spiral surfaces and diameters of 8 mm were used in the test. The bonding lengths are 5 times and 10 times of the FRP diameter, respectively. Results show that the failure modes of all the specimens using ECC as bonding materials are pull-out of FRP rods with ductile behavior. Moreover, specimens with NSM FRP rods using epoxy are prepared as control specimens to evaluate the feasibility of ECC. For CFRP rods, the pull-out load-bearing capacity of specimens using ECC is 70% and 50% of that in specimens using epoxy for 5 times and 10 times of the FRP diameter, respectively. For BFRP rods, the load-bearing capacity of specimens using ECC is 75% and 55% of that in specimens using epoxy for 5 times and 10 times of the FRP diameter, respectively. Thus, ECC can be applied in NSM FRP strengthened concrete structures as the bonding materials.

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Section: Introductionmentioning

confidence: 99%

Bond performance between NSM FRP rods and concrete using ECC as bonding materials

Yang¹,

Wang²,

Fang³

et al. 2015

Proceedings of the Second International Conference on Performance-Based and Life-Cycle Structural Engineering (PLSE 2015)

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“…Considering the use of FRP reinforcement instead of steel reinforcement in some applications has many advantages, primary its excellent resistance to corrosion, the ease of application due to lightweight properties, and the reduced groove size due to higher tensile strength and softer surface deformations (stiff de-formations of steel induce splitting of the concrete cover) [4].…”

Section: Introductionmentioning

confidence: 99%

“…rmations of steel induce splitting of the concrete cover) [4]. Near surface mounting technique has many advantages vs. externally bonding technique (EBR): larger bond surface induces better anchorage capacity, it provides higher resistance against peeling-off, so a higher percentage of the tensile strength can be mobilized, no preparation work is needed other than grooving, therefore reduced installation time will be required, [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…The most relevant mechanical properties of groove filler are tensile and shear strengths. The tensile strength is especially important in case of round bars which induce high circumferential tensile stresses in the epoxy [4]. The shear strength is especially important when the bond is controlled by cohesive shear failure of the epoxy [8].…”

Section: Introductionmentioning

confidence: 99%

“…The main disadvantage is its reduced tensile strength and during hardening of the mortar adequate wetting should be assured. Bond and flexural test identified some limitations of cement mortar as grove filler [4].…”

Section: Introductionmentioning

confidence: 99%

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Near surface mounted FRP reinforcement for strengthening of concrete structures

Szabó¹,

Balázs²

2007

Per. Pol. Civil Eng.

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This paper is based on literature review regarding fibre reinforced polymers (FRP) used as near surface mounted (NSM) reinforcement for strengthening of concrete structures.Strengthening of structures is a complex task. Different systems can be used in order to utilize the fibre reinforced polymer in the most efficient way.Near surface mounted reinforcement is practical alternative to externally bounded reinforcement while it has many advantages.

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Restaurierung antiker Tempel: Experimentelle Untersuchungen zum Ausziehverhalten von Verankerungen im Marmor

Kourkoulis¹,

Papanicolopulos²,

Marinelli³

et al. 2008

Bautechnik

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Bei der Restaurierung antiker griechischer Tempel werden einzelne Marmorblöcke zu einem Bauteil, beispielsweise einem Architrav, zusammengebaut. Wegen der Forderung nach Reversibilität der Eingriffe erfolgt dies an der Akropolis von Athen durch Anwendung von in Zementmörtel eingelassenen Titanstäben mit Gewinde in vorgebohrten Löchern. Diese Art der Restaurierung entspricht einer Teil sanierung der Architrave. Im hier vorliegenden Beitrag werden experimentelle Untersuchungen zum Ausziehverhalten dieser Verankerungsstäbe vorgestellt. Die Versuche werden an einer speziell entworfenen Versuchsanordnung durchgeführt. Das Versagen erfolgt bei allen Versuchen an der Grenzfläche zwischen Mörtel und Bohrlochwand. Es zeigt sich, dass die Gewindeform das Tragverhalten entscheidend beeinflusst. Ferner werden mögliche Grenzzustände definiert.

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A modified pull-out test for bond of near-surface mounted FRP rods in concrete

Cited by 210 publications

References 3 publications

Bond performance between NSM FRP rods and concrete using ECC as bonding materials

Bond performance between NSM FRP rods and concrete using ECC as bonding materials

Near surface mounted FRP reinforcement for strengthening of concrete structures

Restaurierung antiker Tempel: Experimentelle Untersuchungen zum Ausziehverhalten von Verankerungen im Marmor

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