Experimental investigation of basalt fiber-reinforced polymer (BFRP) bar reinforced concrete slabs under contact explosions

Yu, Xiao; Zhou, Bukui; Hu, Feng; Zhang, Yi; Xu, Xiangyun; Fan, Chen; Zhang, Wei; Jiang, Houwen; Liu, Pengqing

doi:10.1016/j.ijimpeng.2020.103632

Cited by 28 publications

(4 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A few recent studies investigated the performance of BFRP-RC structures under different loading and environmental conditions [27,28]. Basalt fibre is a relatively new building material, which is composed of minerals such as pyroxene, plagioclase, and olivine [25].…”

Section: Introductionmentioning

confidence: 99%

Performance of Two-Way Concrete Slabs Reinforced with Basalt and Carbon FRP Rebars

et al. 2022

View full text Add to dashboard Cite

Fibre-reinforced polymer (FRP) rebars are being increasingly used to reinforce concrete structures that require long-term resistance to a corrosive environment. This study presents structural performance of large scale two-way concrete slabs reinforced with FRP rebars, and their performances were compared against conventional steel reinforced concrete. Both carbon FRP (CFRP) and basalt FRP (BFRP) were considered as steel replacement. Experimental results showed that the CFRP- and BFRP-RC slabs had approximately 7% and 4% higher cracking moment capacities than the steel-RC slab, respectively. The BFRP-RC slabs experienced a gradual decrease in the load capacity beyond the peak load, whereas the CFRP-RC slabs underwent a sharp decrease in load capacity, similar to the steel-RC slab. The BFRP-RC slabs demonstrated 1.72 times higher ductility than CFRP-RC slabs. The steel-RC slab was found to be safe against punching shear but failed due to flexural bending moment. The FRP-RC slabs were adequately safe against bending moment but failed due to punching shear. At failure load, the steel rebars were found to be yielded; however, the FRP rebars were not ruptured. FRP-RC slabs experienced a higher number of cracks and higher deflection compared to the steel-RC slab. However, FRP-RC slabs exhibited elastic recovery while unloading. Elastic recovery was not observed in the steel-RC slab. Additionally, the analytical load carrying capacity was validated against experimental values to investigate the efficacy of the current available standards (ACI 318-14 and ACI 440.1R-15) to predict the capacity of a two-way slab reinforced with CFRP or BFRP. The experimental load capacity of the CFRP-RC slabs was found to be approximately 1.20 times higher than the theoretical ultimate load capacity. However, the experimental load capacity of the BFRP-RC slabs was 6% lower than their theoretical ultimate load capacity.

show abstract

Section: Introductionmentioning

confidence: 99%

Performance of Two-Way Concrete Slabs Reinforced with Basalt and Carbon FRP Rebars

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Li et al [20] conducted contact explosion tests on ultrahigh performance concrete slabs, and the research shows that ultrahigh performance concrete slab has better antiexplosion performance than an ordinary concrete slab. Yu et al [21] conducted a contact explosion test on BFRP reinforced concrete slab and found that the high strength and flexibility of BFRP make BRCS have better antiexplosion performance. Ohkubo et al [22] found that fiberboard can prevent the concrete slab from breaking and improve the antiexplosion performance of the concrete slab through the contact explosion test of the concrete slab.…”

Section: Introductionmentioning

confidence: 99%

Damage Characteristics of Polymer Plates under the Impact of the Near‐Field and Contact Underwater Explosion

Liu

Zhao

Fang

et al. 2021

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

In order to study the damage characteristics of polymer plates under the impact of the underwater explosion, the underwater contact and near-field explosion tests of polymer plates were conducted using different explosive quantities. In this paper, eight polymer plates with the size of 500 mm × 500 mm × 60 mm were made, and eight groups of explosion tests were carried out by using the rock emulsion explosive and nonconductive detonators. The damage modes and spatial distribution characteristics of the polymer plate generated by the underwater contact and near-field explosion impact with different explosive quantities are compared and analyzed. In addition, the characteristics of the shock wave propagation in the plates are investigated. It can be observed that the main damage mode of polymer plate is overall damage under the contact underwater explosion. For the near-field explosion, the main damage mode changes to overall failure, and the damage of contact explosion to polymer plate is greater than that of underwater near-field explosion. The polymer plate can reduce and delay the shock wave effectively, but the effect decreases with the increase of explosive quantity in the underwater contact explosion.

show abstract

“…In terms of reinforcement materials: natural fibre and industrial by-products [15], mining waste [16], polypropylene [17], polyacrylonitrile and glass fibres [18] and basalt fibre (BF) [19] had been studied. In terms of reinforcement objects: cemented tailings backfill [20,21], concrete slabs [22], tailingscement blends [23], soil [24] and seawater sea sand concrete [25] had been investigated. In terms of research methods: triaxial tests [26], unconfined compressive strength [27,28], direct shear tests [29], Brazilian indirect tensile [30], centrifuge tests [31], X-ray diffraction [32], computed tomography [33] and scanning electron microscopy (SEM) [34] had been analysed.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and permeation response characteristics of basalt fibre reinforced tailings to different reinforcement technologies: an experimental study

et al. 2021

View full text Add to dashboard Cite

Tailings dam is a man-made hazard with high potential energy; dam failure would cause great losses to human lives and properties. However, the limitations of conventional reinforcement methods like geosynthetic make it easy to slide along the weak structural plane. In this paper, we innovatively added basalt fibre (BF) with different lengths ( l ) and contents ( ω ) into tailings to study its mechanical and permeation characteristics. The results indicate that BF can improve the shear strength ( τ ), cohesion ( c ) and compression index ( C c ) of tailings, but it has little effect on internal friction angle ( φ ). When l is constant, τ , c and C c are positively correlated with ω . One notable phenomenon is that τ and c do not constantly increase with l when ω is constant, but obtain the maximum under the optimal length of 6 mm. Moreover, when ω > 0.6%, permeability coefficient ( k ) is greater than that of the original tailings and the sensitivity of c , φ , τ , C c , k to fibre content is greater than that of length. The research results facilitate the understanding of BF reinforced tailings, and could serve as references for improving the safety of tailings dam and other artificial soil slopes or soil structures.

show abstract

Experimental investigation of basalt fiber-reinforced polymer (BFRP) bar reinforced concrete slabs under contact explosions

Cited by 28 publications

References 21 publications

Performance of Two-Way Concrete Slabs Reinforced with Basalt and Carbon FRP Rebars

Performance of Two-Way Concrete Slabs Reinforced with Basalt and Carbon FRP Rebars

Damage Characteristics of Polymer Plates under the Impact of the Near‐Field and Contact Underwater Explosion

Mechanical and permeation response characteristics of basalt fibre reinforced tailings to different reinforcement technologies: an experimental study

Contact Info

Product

Resources

About