Technora, an Aramid FRP Rod

Kakihara, Ryuichi; Kumagai, Seiji; Mizutani, Jun

doi:10.1016/b978-0-444-89689-6.50016-1

Cited by 15 publications

(11 citation statements)

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“…When advanced composites were developed, a considerable amount of work was carried out in an attempt to show that advanced composites can bond to concrete; some of the results show that very high bond strengths are possible. 15 Transmission lengths of a few millimetres have been reported, with bond strengths of the order of 20 N/mm 2 . 16 But is this a good thing?…”

Section: To Bond or Not To Bond?mentioning

confidence: 99%

Rational use of advanced composites in concrete

Burgoyne

2001

Proceedings of the Institution of Civil Engineers - Structures

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Knowledge of the properties of advanced composites leads to conclusions about the most logical ways in which they can be used. The paper considers the elastic properties, the bond properties and the lack of ductility, and concludes that structures should be designed as over-reinforced, with partially bonded internal tendons, and resin-free external tendons. It concludes that enhancement of the compression zone is possible by fibre-reinforcing or confining the concrete, and that requirements for shear need to be totally reworked in the absence of plasticity. It considers the economic justification of advanced composites in concrete, and concludes that innovation is still required, but now on a commercial scale.

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Section: To Bond or Not To Bond?mentioning

confidence: 99%

Rational use of advanced composites in concrete

Burgoyne

2001

Proceedings of the Institution of Civil Engineers - Structures

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“…The physical properties of AFRP corresponding to the practical construction requirements, that is, rod handling, heat resistance against welding, physical strength against impact load and concrete casting, relaxation, bond length and, strength of bent portions were confirmed through experiments and the guidelines for the construction were prepared. 11 Each pre-tensioned girder contains 16 main cables composed of 3 Â 6 mm diameter AFRP plain rods (Figure 1d). Additionally, deformed aramid rods (Figure 1c) with a diameter of 8 mm at 300 mm pitch were applied as shear reinforcement (Figure 1d, e).…”

Section: Non-metallic Girders With Aramid Fiber Reinforced Polymer Te...mentioning

confidence: 99%

Life cycle assessment of next generation non‐metallic bridges

Zerin

Kasuga

2023

Structural Concrete

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Employments of highly durable low carbon technologies are crucial for mitigation of climate change ensuring sustainable infrastructures. In this perspective, a challenging initiative for ultra-high durability low carbon prestressed concrete bridges utilizing sustainable zero cement concrete (STC-ZERO) and nonmetallic reinforcement is undertaken. STC-ZERO exhibiting high strength, low shrinkage, and low creep reduces carbon emission up to 70% compared to the conventional concrete as cement is entirely replaced. Aramid fiber PC tendons have no factor of deterioration of concrete thanks to nonexistence of corrosion. Accordingly, an AASTHO-PCI BT-72 PC girder bridge and a butterfly web bridge are designed incorporating this combination and compared with corresponding conventional bridges with respect to whole life carbon emissions. Since there are no repair and rehabilitation requirements, the whole life carbon emissions of next generation non-metallic bridges are expected to be reduced by around 70%.

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“…Entretanto, Noritake et al (1993) 2 notaram que, quando as barras são formadas por múltiplos feixes de fibras impregnadas de resina, a resistência à tração obtida experimentalmente é menor do que a resistência à tração teórica, isto é, prevista pela teoria.…”

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Barras de FRP: avaliando o módulo de elasticidade não destrutivamente

Castro

1997

Polímeros

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Um estudo experimental foi realizado com o objetivo de contribuir com o desenvolvimento de métodos de ensaios de avaliação das características mecânicas das barras de plástico reforçado com fibra (FRP) a serem utilizadas como armadura nas obras de engenharia civil. Comparou-se o módulo de elasticidade estático, obtido por ensaio de tração em uma máquina universal, com o módulo de elasticidade dinâmico, obtido por ensaios não destrutivos. O módulo de elasticidade dinâmico foi determinado utilizando-se dois métodos de propagação de ondas: o pulso ultra-sônico e a freqüência de ressonância. Os valores do módulo de elasticidade dinâmico e os valores do módulo de elasticidade estático obtidos a partir da curva tensão-deformação dos ensaios de tração são significativamente semelhantes. Os resultados mostram que os ensaios de módulo de elasticidade dinâmico possuem potencial para serem utilizados na linha de fabricação das barras de FRP como controle da produção.

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Technora, an Aramid FRP Rod

Cited by 15 publications

References 0 publications

Rational use of advanced composites in concrete

Rational use of advanced composites in concrete

Life cycle assessment of next generation non‐metallic bridges

Barras de FRP: avaliando o módulo de elasticidade não destrutivamente

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