Effects of basalt fiber powder on mechanical properties and microstructure of concrete

H, Yu; Tao, Meng; Zhao, Youcai; Liao, Jianping; Ying, Kanjun

doi:10.1016/j.cscm.2022.e01286

Cited by 13 publications

(13 citation statements)

References 45 publications

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“…It can be seen in Figure 22 a that there are large pores and cracks, the whole structure is relatively loose, and the natural strength is low. In Figure 22 b, BF has been added, and thus the pores are tighter than before, and some fibrous C−S−H gels are formed in the pores [ 38 ], which indicates that the addition of a small amount of BF contributes to the early hydration reaction of concrete. In Figure 22 c, it is obvious that the bond between concrete and BF is stronger than in the former, because more C−S−H gel is formed in the concrete, which further promotes the medium-term hydration reaction of concrete.…”

Section: Resultsmentioning

confidence: 99%

Experimental Study on Mechanical Properties of Basalt Fiber Concrete after Cryogenic Freeze−Thaw Cycles

Zhao

et al. 2022

Polymers

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Basalt fiber (BF) has received much attention in recent years for engineering practice and scientific research related to basalt fiber reinforced concrete (BFRC) due to its advantageous mechanical properties and cost-effectiveness. By researching its performance characteristics after cryogenic freeze–thaw cycles, the advantages of BFRC’s mechanical properties can be further exploited in order to expand its application scope. The effects of the fiber volume fraction, temperature gradient, and number of freeze–thaw cycles on the compressive strength, toughness index, splitting tensile strength, flexural strength, etc., of BFRC were investigated. Additionally, the damage mechanism of BFRC after freeze–thaw cycles was analyzed via scanning electron microscopy (SEM). The results show that the compressive strength of BFRC reaches its peak value when the fraction reaches 0.1% under the conditions of freezing and thawing cycles from room temperature to −80 °C. When the fraction of BFRC is 0.1%, and the maximum reduction is 17.1%, the splitting tensile strength decreased most sharply when the fraction was 0.1%, and the decrease amplitude was 40.9%, and the flexural strength decreased most acutely when the fraction was 0.3%, and the maximum decrease was 44.62%. The addition of basalt fibers can reduce the damage to the microstructure of concrete and improve its plastic degradation characteristics to a certain extent. With a decrease in the minimum temperature of the cryogenic freeze–thaw cycle, the optimal fiber content for compressive strength increases. Nevertheless, the splitting tensile strength and flexural strength of BFRC is improved as the fiber content increases under the cryogenic freeze–thaw environment.

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Section: Resultsmentioning

confidence: 99%

Experimental Study on Mechanical Properties of Basalt Fiber Concrete after Cryogenic Freeze−Thaw Cycles

Zhao

et al. 2022

Polymers

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“…oncrete is the most widely used building material due to its superior properties like compressive strength, impact resistance, and durability [1]. But inadequate tensile strength and the catastrophic nature of failure raised to find appropriate techniques to overcome such drawbacks.…”

Section: Introductionmentioning

confidence: 99%

“…But inadequate tensile strength and the catastrophic nature of failure raised to find appropriate techniques to overcome such drawbacks. The incorporation of filler i.e., E-waste, short synthetic fiber, steel fibers, and natural fibers [1][2][3][4][5] slow down the random propagation of cracks. Along with that, Fiber-reinforced composites (FRP) as external jacket [6][7][8] is promising to enhance their strength due to their superior properties like high tensile strength, impact resistance, stiffness, and flexural strength.…”

Section: Introductionmentioning

confidence: 99%

An assessment of HDPE fillers and Fiber Wrapping on the strength of Reinforced Concrete

Gudadappanavar

Kulkarni

Gouda

2023

Frattura Ed Integrità Strutturale

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Fiber-reinforced polymer (FRP) is the most promising technique in the present era to bring sustainability, reliability, and pseudo ductility to concrete structures due to its superior properties. Thermoplastic and thermoset polymers are the most thrown-out synthetic waste that contributes to environmental pollution for a long time. Knowing this issue an attempt was made to use High-Density Polyethylene Fiber (HDPE) fillers of size 40x2 mm has been used in concrete. This investigation aims to estimate the integrity effect of HDPE fillers incorporation and wrapping of concrete with Basalt fiber mats (BFM) and Geo-textile fiber mats (GFM) on split tensile strength, shear strength, and impact resistance as per standards. Results indicate that the addition of an optimum quantity of HDPE has a significant effect on improving the tensile, shear, and impact strengths. Adding HDPE fillers in the range of 0.5 - 1.5% in concrete samples wrapped with Basalt and Geo-textile fiber mats showed an increased tensile strength of up to 14.06% and 7.40% respectively with that conventional concrete. Further, wrapping of concrete using Basalt fiber and geotextile fiber mats showed a 4.16% and 20% increase in shear strength for 0.5% HDPE-incorporated concrete samples. Higher impact resistance was also observed for HDPE-added and fiber-wrapped concrete samples.

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“…The results showed that the compressive strength and flexural strength of the fiber-reinforced concrete increased by 25% and 50%, respectively, compared to that of the control samples. Yu et al [ 40 ] investigated the effect of basalt fiber powder on the mechanical properties and microstructure of concrete. The results showed that 0.20 vol% basalt fiber could improve the antiabrasion property significantly, and the incorporation of basalt fiber would refine the pores and promote the densification of the concrete.…”

Section: Introductionmentioning

confidence: 99%

Research on the Mechanical and Physical Properties of Basalt Fiber-Reinforced Pervious Concrete

Pang

et al. 2022

Materials

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The aim of this study was to investigate the properties of fiber-reinforced pervious concrete. Ordinary cement, silica fume, coarse aggregate, and basalt fibers were used to produce the concrete mix. The fibers were mixed with pervious concrete at the levels of 0 kg/m3, 2 kg/m3, 4 kg/m3, 6 kg/m3, and 8 kg/m3 to the investigate their influence on the mechanical and physical properties of pervious concrete. It could be observed that the cubic compressive strength, axial compressive strength, and flexural strength increased and then decreased as the content of basalt fiber increased, while the permeability and porosity of the pervious concrete decreased with the increase in the basalt fiber content. The mesostructure of pervious concrete was also studied through industrial computed tomography (ICT); the testing phenomenon showed that the fibers had a significant influence on the arrangement of the aggregate, cement paste, and the interfacial transition zone, and excessive basalt fiber resulted in poor characteristics of the interfacial transition zone (ITZ) and inferior strength properties. It was found that incorporating a basalt fiber content of 4 kg/m3 could achieve a balance between the mechanical and physical properties of pervious concrete, which was suitable for structural applications.

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Effects of basalt fiber powder on mechanical properties and microstructure of concrete

Cited by 13 publications

References 45 publications

Experimental Study on Mechanical Properties of Basalt Fiber Concrete after Cryogenic Freeze−Thaw Cycles

Experimental Study on Mechanical Properties of Basalt Fiber Concrete after Cryogenic Freeze−Thaw Cycles

An assessment of HDPE fillers and Fiber Wrapping on the strength of Reinforced Concrete

Research on the Mechanical and Physical Properties of Basalt Fiber-Reinforced Pervious Concrete

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