Abstract
Using fibre-reinforced polymers (FRP) in construction avoids corrosion issues associated with the use of traditional steel reinforcement, while seawater and sea sand concrete (SWSSC) reduces environmental issues and resource shortages caused by the production of traditional concrete. The paper gives an overview of the current research on the bond performance between FRP tube and concrete with particular focus on SWSSC. The review follows a thematic broad-to-narrow approach. It reflects on the current research around the significance and application of FRP and SWSSC and discusses important issues around the bond strength and cyclic behaviour of tubular composites. A review of recent studies of bond strength between FRP and concrete and steel and concrete under static or cyclic loading using pushout tests is presented. In addition, the influence of different parameters on the pushout test results are summarised. Finally, recommendations for future studies are proposed.
Highlights
Fibre-reinforced polymer (FRP) concrete composites have found increasing application in the civil engineering and construction sector over the past years [1,2,3]
This paper provides an overview of the current research on fibre-reinforced polymer (FRP) and seawater and sea sand concrete (SWSSC) composites with particular focus on their bond behaviour and bond strength under static and cyclic loading
As expected, pultruded GFRP tubes with longitudinal fibres showed significantly lower bond strength compared to filament wound tubes with more fibres oriented in the hoop direction
Summary
Fibre-reinforced polymer (FRP) concrete composites have found increasing application in the civil engineering and construction sector over the past years [1,2,3]. Due to their favourable mechanical properties, such as high strength-to-weight ratio, high stiffness and high corrosion resistance [10,28,32], FRP composites have attracted increasing attention in the research and construction sector in recent years [3,11,50]. These properties have made them popular for a wide range of application in the marine engineering sector, such as for example in bridge piers, high-rise buildings and drilling platforms [1,8,20]. Due to their advantageous properties, concrete filled FRP columns are being increasingly used in seismic environments, as either refurbishment of existing columns or for new columns, or in marine environments for example as poles or bride columns [3]
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