Shear strength testing of basalt-, hybrid-, and nano-hybrid fibre-reinforced polymer bars

Over the past decades, using of sustainable materials in construction is a challenging issue, thus Fibre Reinforced Polymers (FRP) took the attention of civil and structural engineers for its lightweight and high-strength properties. The paper describes the results of the shear strength testing of t...

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Bibliographic Details
Published in:Archives of civil engineering 2021-01, Vol.67 (2), p.323-336
Main Authors: Protchenko, Kostiantyn, Zayoud, Fares, Urbański, Marek
Format: Article
Language:English
Subjects:
Bars
Basalt
Carbon
Carbon fiber reinforced plastics
composite bars
Fiber reinforced polymers
fibre-reinforced polymers (frp) bars
hybrid frp bars
Mechanical properties
nhfrp bars
Polymers
Shear deformation
Shear strength
shear testing
Strength testing
Structural engineers
Sustainable materials
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Summary:Over the past decades, using of sustainable materials in construction is a challenging issue, thus Fibre Reinforced Polymers (FRP) took the attention of civil and structural engineers for its lightweight and high-strength properties. The paper describes the results of the shear strength testing of three different types of bars: (i) basalt- FRP (BFRP), (ii) hybrid FRP with carbon and basalt fibres (HFRP) and (iii) nano-hybrid FRP (nHFRP), with modification of the epoxy matrix of the bar. The hybridization of carbon and basalt fibres lead to more costefficient alternative than Carbon FRP (CFRP) bars and more sustainable alternative than Basalt FRP (BFRP) bars. The BFRP, HFRP and nHFRP bars with different diameters ranging from Ø4 to Ø18 mm were subjected to shear strength testing in order to investigate mechanical properties and the destruction mechanism of the bars. Obtained results display a slight downward trend as the bar diameter increase, which is the most noticeable for HFRP bars. In most of the cases, BFRP bars were characterized by greater shear deformation and less shear strength compared to HFRP and nHFRP bars. Performed testing may contribute to comprehensive understanding of the mechanical behavior of those types of FRP bars.
ISSN:1230-2945
2300-3103
DOI:10.24425/ace.2021.137171