Physical and mechanical characteristics of new basalt-FRP bars for reinforcing concrete structures

Elgabbas, Fareed; Ahmed, Ehab A.; Benmokrane, Brahim

doi:10.1016/j.conbuildmat.2015.07.036

Cited by 130 publications

(44 citation statements)

References 8 publications

(9 reference statements)

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“…Many experimental tests were made under research programme for the members reinforced internally with BFRP bars. The BFRP bars used in RC structures are expected to provide more benefits that are comparable or superior to other FRP types while being significantly cost effective [16,37].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Hybrid FRP Bars and Nano-Hybrid FRP Bars

Szmigiera

Protchenko

Urbański

et al. 2019

Archives of Civil Engineering

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The paper describes the recent developments of Hybrid Fibre-Reinforced Polymer (HFRP) and nano-Hybrid Fibre-Reinforced Polymer (nHFRP) bars. Hybridization of less expensive basalt fibres with carbon fibres leads to more sustainable alternative to Basalt-FRP (BFRP) bars and more economically-efficient alternative to Carbon-FRP (CFRP) bars. The New-Developed HFRP bars were subjected to tensile axial loading to investigate its structural behaviour. The effect of hybridization on tensile properties of HFRP bars was verified experimentally by comparing the results of tensile test of HFRP bars with non-hybrid BFRP bars. It is worth to mention that the difference in obtained strength characteristics between analytical and numerical considerations was very small, however the obtained results were much higher than results obtained experimentally. Authors suggested that lower results obtained experimentally can be explained by imperfect interphase development and therefore attempted to improve the chemical cohesion between constituents by adding nanosilica particles to matrix consistency.

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Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Hybrid FRP Bars and Nano-Hybrid FRP Bars

Szmigiera

Protchenko

Urbański

et al. 2019

Archives of Civil Engineering

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“…The composite bars have become a useful substitute for conventionalreinforcement in civil engineering structuresfor which load capacity and resistance to environmental influences are required [3][4][5][6][7]. Fibre Reinforced Polymer (FRP) has been widely used for reinforcement or rehabilitation of the upper structures.…”

Section: Introductionmentioning

confidence: 99%

“…A notable method utilizing the confinement to concrete columns by FRP has been studied in [13,25]. There is a large amount of research focus on the analyzing the structural behavior of beams and walls with consideration of FRP sheet [15,16] and bars application [6,7,22]. The composite bars are often used in concrete structural elements exposed to strong environmental aggression, such as foundations, breakwaters and other seaside structures, road structures and tanks and other geotechnical structures in sewage treatment plants [9,10,14].…”

Section: Introductionmentioning

confidence: 99%

Application of basalt-FRP bars for reinforcing geotechnical concrete structures

Kosior‐Kazberuk

2019

MATEC Web Conf.

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The fiber reinforced polymer (FRP) bars have become a useful substitute for conventional reinforcement in civil engineering structures for which load capacity and resistance to environmental influences are required. They are often used in concrete structural elements exposed to strong environmental aggression, such as foundations, breakwaters and other seaside structures, road structures and tanks. The basalt fiber-reinforced polymer (BFRP) is the most recently FRP composite, appearing within the last decade. Due to their mechanical properties different from steel bars, such as higher tensile strength and lower Young's modulus, BFRP bars are predestined for use in structures for which the ultimate limit state is rather decisive than serviceability limit state. Experimental tests were carried out to assess the influence of static long-term loads and cyclic freezing/thawing on the behaviour of concrete model beams with non-metallic reinforcement. The bars made of basalt fiber reinforced polymer (BFRP) and hybrid (basalt and carbon) fiber reinforced polymer (HFRP) were used as non-metallic reinforcement. The mechanical properties of both types of bars were also determined.

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“…Currently, research is being carried out at the Warsaw University of Technology on the use of new generation HFRP (Hybrid Fiber Reinforced Polymer) composite bars for concrete slab reinforcement, in which some of the basalt fibers have been replaced with carbon fibers with the addition of resin binders [4,5]. This do the possibility of making concrete slabs with increased resistance for environmental aggression, with good mechanical properties [6,7,8,9]. As a result, the durability of the structure is improved, which is especially useful for road constructions.…”

Section: Introductionmentioning

confidence: 99%

Flexible pavement rehabilitation with continuously reinforced concrete slab with HFRP bars - mechanistic analysis

et al. 2019

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Asphalt road pavements are subject to damage under the influence of loads from the traffic of vehicles and of the environmental factors. One of the ways to strengthen damaged flexible pavements is to apply a cement concrete overlay with continuous reinforcement. The purpose of this paper is to analyze the road structure with concrete overlay with continuous reinforcement HFRP composite bars, which is laid on the existing cracked asphalt layers of a typical flexible road of KR3 traffic category. In HFRP bars some of the basalt fibers have been replaced with carbon fibers with the addition of resin binders. This do the possibility of making concrete slabs with increased resistance for environmental aggression, with good mechanical properties, which is especially important in the case of road constructions. An analysis of fatigue life of the strengthened asphalt pavement with a concrete slab with continuous reinforcement of HFRP bars was carried out, implementing the mechanistic model of the pavement structure. The stress analysis in the structure under the action of static loading was determined by the Finite Element Method using the Abaqus/Standard program. The maximum value of stress caused by temperature gradient in the concrete slab was calculated from the Westergaard’s formula for infinite slab. It has been shown that strengthening the analyzed road pavement with a continuous reinforcement is a technology that ensures an increase in fatigue life and reinforcement with HFRP bars further increases durability due to the negative impact of environmental factors.

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Physical and mechanical characteristics of new basalt-FRP bars for reinforcing concrete structures

Cited by 130 publications

References 8 publications

Mechanical Properties of Hybrid FRP Bars and Nano-Hybrid FRP Bars

Mechanical Properties of Hybrid FRP Bars and Nano-Hybrid FRP Bars

Application of basalt-FRP bars for reinforcing geotechnical concrete structures

Flexible pavement rehabilitation with continuously reinforced concrete slab with HFRP bars - mechanistic analysis

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