A review of the mechanical properties and durability of basalt fiber-reinforced concrete

Zheng, Ying‐Ying; Zhuo, Jingbo; Zhang, Yamin; Wei, Cong

doi:10.1016/j.conbuildmat.2022.129360

Cited by 61 publications

(18 citation statements)

References 119 publications

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“…Its mechanical properties are better than those of plant fiber and similar to those of glass fiber [32]. At the same time, basalt fiber is also widely used as reinforcing fiber to improve the mechanical properties and durability of concrete because of its excellent mechanical properties, high temperature resistance, acid and alkali resistance, raw material availability, and environmental protection production process [33].…”

Section: Scholar Materials Thermal Conductivity (W/(m•k)) Compressive...mentioning

confidence: 99%

Research on New Solid Waste Heat Insulation Material for Deep Mining

Wen

Zheng

2023

Minerals

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The global demand for mineral resources has led to the gradual transformation of the mining industry from the traditional shallow, small-scale mining mode to the high-intensity mining of deep underground mines. Due to the high stress, high temperature, high permeability, and easy disturbance of deep mines, new challenges have been brought to the mining of materials. Some scholars have improved the thermal insulation performance of concrete by adding low thermal conductivity materials such as ceramsite, shell, and natural fiber to traditional shotcrete, but there are still high costs, insufficient support strength, and unsatisfactory thermal insulation effects. Given the background related to the fact that it is still not possible to fully recycle the large amount of solid waste generated by mining activities, this paper, with traditional shotcrete as its basis, uses coal fly ash to replace part of the cement and tailings to replace part of the sand and gravel aggregate. In addition, it adds basalt fiber to reduce thermal conductivity and restore strength. An orthogonal experiment of three factors and three levels was designed to explore a new type of solid waste-based thermal insulation support shotcrete material. Through the testing and analysis of the mechanical and thermal properties of the specimens, it was concluded that the optimal ratio of the materials was 45% fly ash, 50% tailings, and 25% basalt fiber (the percentage of the total mass of fly ash and cement). The compressive strength of the specimens after curing for 28 days could reach 16.26 MPa, and the thermal conductivity and apparent density were 0.228561 W/(m·k) and 1544.00 kg/m3, respectively. By using COMSOL Multiphysics multi-physics coupling software to analyze the coupling of the stress field and temperature field, it was concluded that the optimum thickness of the thermal insulation layer of this material was 150 mm. The field application in a mine in Shandong Province proved that it met the effects of thermal insulation (the ability to isolate heat conduction) and support. The successful trial of this material provides a new idea for the solving of the problem of heat damage and solid waste utilization in deep mines, which has a certain practical significance.

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Section: Scholar Materials Thermal Conductivity (W/(m•k)) Compressive...mentioning

confidence: 99%

Research on New Solid Waste Heat Insulation Material for Deep Mining

Wen

Zheng

2023

Minerals

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“…Therefore, the research on improving the toughness of geopolymer concrete is gradually obtaining broad attention. The formation process of cracks is shown in Figure 2 [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Fiber on the Mechanical Properties of Geopolymer Concrete: A Review

et al. 2023

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Geopolymer is widely used as a supplement to cementitious composites because of its advantages of low carbon and environmental protection, and geopolymer concrete is also broadly used in practical engineering. In recent years, geopolymer concrete has attracted increasing interest owing to its superior mechanical properties, and a series of research results have been obtained. In this paper, from the preparation of geopolymer concrete, based on the characteristics that geopolymer concrete is brittle and easy to crack, the types and basic properties of fibers to enhance the toughness of concrete are analyzed, the advantages and disadvantages of different fibers used as a material to enhance the toughness of concrete are summarized, and we review the effects of type, shape, volume rate, aspect ratio, and hybrid fiber combinations on the static mechanical properties. The results indicate that fibers have significant potential to enhance the compressive strength, splitting tensile strength, flexural strength, and fracture toughness of geopolymer concrete, and the optimal fiber volume rate seems to be related to the fiber type. Whereas the effect of aspect ratio and hybrid fiber combinations on the properties of geopolymer concrete seems to be obvious. This paper reviews the influence of fiber on the basic mechanical properties of geopolymer concrete, which provides a solid foundation to promote the further development and application of the research on the toughness of fiber-reinforced geopolymer concrete and provides recommendations for future research.

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“…Among them, short-cut basalt fibers (BF) have a great bonding force of base material, high strength, and corrosion resistance, and can be adapted to various environmental conditions. It was shown [ 13 , 14 , 15 , 16 ] that BF can improve the tensile strength, fracture modulus, toughness, and deformation resistance of concrete. Zheng et al [ 16 ] concluded that the mechanical properties of concrete were effectively improved when BF at 10–20 μm in filament diameter, 12–20 mm in length, and 1% in volume fraction by combing the study of mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…It was shown [ 13 , 14 , 15 , 16 ] that BF can improve the tensile strength, fracture modulus, toughness, and deformation resistance of concrete. Zheng et al [ 16 ] concluded that the mechanical properties of concrete were effectively improved when BF at 10–20 μm in filament diameter, 12–20 mm in length, and 1% in volume fraction by combing the study of mechanical properties. At the same time, the synthetic fiber represented by polyvinyl alcohol fiber (PVAF) has excellent hydrophilicity, impact resistance, cohesiveness, and dispersion.…”

Section: Introductionmentioning

confidence: 99%

Macro-Mesoscale Mechanical Properties of Basalt-Polyvinyl Alcohol Hybrid Fiber-Reinforced Low-Heat Portland Cement Concrete

Zheng

2023

Polymers

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To investigate the mechanical properties of hybrid basalt fiber (BF) and polyvinyl alcohol fiber (PVAF)-reinforced low-heat Portland cement concrete (LHPCC), two groups of concrete were formulated. The BF and PVAF were equal in the first group, and the total fiber contents were 0–0.4%. The second group was the total fiber content of 0.3% and the occupancy of BF in the hybrid fiber of 0, 25%, 50%, 75%, and 100%. Two groups of concrete were tested for compressive, splitting tensile, and flexural strengths to illustrate the enhanced mechanism of the mechanical properties of LHPCC by hybrid fiber. The best mechanical property enhancement was achieved when BF and PVAF were in equal proportions and the fiber content was 0.3%. Meanwhile, the test results for the mechanical properties were also compared with the predicted values of ACI 318 and Eurocode 2. Moreover, the hybrid BF-PVAF-reinforced concrete was regarded as a three-phase composite material consisting of fiber-reinforced mortar, coarse aggregate, and an interfacial transition zone. The axial compressive and splitting tensile strengths, damage processes, and mechanical strengthening mechanisms of concrete were investigated for different total fiber content at equal ratios of BF and PVAF, and the results were compared with the macroscopic mechanical test findings. The results show that the conclusion of the meso-simulation matches well with the test. Finally, the effect of aggregate and hybrid fiber content on the mechanical properties of LHPCC was predicted by a simulation. The results of this study can provide references for future mechanical modeling, performance studies, and practical engineering applications of LHPCC.

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A review of the mechanical properties and durability of basalt fiber-reinforced concrete

Cited by 61 publications

References 119 publications

Research on New Solid Waste Heat Insulation Material for Deep Mining

Research on New Solid Waste Heat Insulation Material for Deep Mining

The Influence of Fiber on the Mechanical Properties of Geopolymer Concrete: A Review

Macro-Mesoscale Mechanical Properties of Basalt-Polyvinyl Alcohol Hybrid Fiber-Reinforced Low-Heat Portland Cement Concrete

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