Laboratory Performance Evaluation of Reinforced Basalt Fiber in Sealing Asphalt Chips

Gu, Xingyu; Zhang, X.; Lv, Jiaqi; Huang, Zirui; Yu, Bin; Zou, Xiaoyong

doi:10.1520/jte20160186

Cited by 10 publications

(4 citation statements)

References 14 publications

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“…Moreover, to further verify the parameter setting rationality of the composition characteristics of the mesostructural IDT specimen, the vertical displacement Y T at the reference point RP-1 of the IDT model in Figure 7 is extracted, and then the creep compliance J T can be obtained by formulas (3) and (6). Meanwhile, the equivalent stress under a given load can be calculated by formula (8). Finally, the equivalent strain ε eq of the control point at the center of the IDT model can be obtained in accordance with the equivalent stress multiplied by the creep deformation J T as follows: .…”

Section: Numerical Simulation Of Idt Mesostructuralmentioning

confidence: 99%

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Viscoelastic Equivalent Creep Behavior and Its Influencing Factors of Basalt Fiber‐Reinforced Asphalt Mixture under Indirect Tensile Condition

Zhang

Xia

2021

Advances in Materials Science and Engineering

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The aim of this study is to further investigate the effect of different basalt fiber (BF) factors on the viscoelastic equivalent creep behavior of fiber-reinforced asphalt mixture (FRAM) under indirect tensile (IDT) condition. A two-dimension mesostructural model composed of different components including fiber mortar polymer and coarse particle aggregate is constructed via the section image processing for the IDT FRAM specimen, where BF is considered as random distribution in the mortar polymer. Furthermore, the stress distribution and equivalent creep of the IDT mesostructural model in simulation software are analyzed to discuss the influence of components on the creep behavior of FRAM. Moreover, the laboratory creep test of IDT specimens under 0% and 0.3% BF contents for FRAM is carried out to validate the simulated values. Research results indicate that the simulated creep deformation of the IDT mesostructural model is in agreement with that of the experiment. Finally, creep simulations are further conducted to discuss the effect of BF (e.g., fiber content, length-diameter ratio, and fiber modulus) and aggregate on the creep characteristic of FRAM. The increase of fiber content and length-diameter ratio has a significant reinforcing effect on the equivalent mechanical behavior, but the change in the modulus of fiber and aggregate has slight effects.

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Section: Numerical Simulation Of Idt Mesostructuralmentioning

confidence: 99%

“…Basalt fiber (BF) in asphalt mixture has also been compared with some common fiber modifiers [7][8][9][10][11]. For instance, BF has more superior mechanical property and durability than organic fibers and is also more eco-friendly than glass and steel fibers [12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Viscoelastic Equivalent Creep Behavior and Its Influencing Factors of Basalt Fiber‐Reinforced Asphalt Mixture under Indirect Tensile Condition

Zhang

Xia

2021

Advances in Materials Science and Engineering

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“…Basalt fiber (BF) has the advantages of high modulus, good impact resistance, excellent alkali and acid resistance, high durability, etc., which makes it commonly used in asphalt concrete and cement concrete [ 7 , 8 , 9 , 10 , 11 ]. A large number of scholars have improved emulsified asphalt performance by adding basalt fiber (BF) [ 12 , 13 , 14 , 15 ]. Emulsified asphalt has the disadvantages of long demulsification time, slow formation of the strength of the mixture, and poor initial strength of the mixture.…”

Section: Introductionmentioning

confidence: 99%

Modification Mechanism and Rheological Properties of Emulsified Asphalt Evaporative Residues Reinforced by Coupling-Modified Fiber

Kong

et al. 2021

Materials

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In order to solve the problems of the smooth surface of basalt fiber and its weak interfacial adhesion with emulsified asphalt cold recycled mixture, a silane coupling agent (KH550) was used to treat the surface of basalt fiber and the effects of treatment concentration and soaking time on fiber modification were studied. The influence of silane coupling-modified basalt fiber (MBF) on the rheological properties of emulsified asphalt evaporation residue was studied at high and low temperatures using three routine index tests: a dynamic shear rheological test (DSR), a bending beam rheological test (BBR), and a force ductility test. The elemental changes of the fiber before and after modification and the microstructure of the emulsified asphalt evaporation residue with the coupling-modified fiber were analyzed by Fourier infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and X-ray energy dispersive spectroscopy (EDS), which is used to study the modification mechanism of emulsified asphalt evaporation residue reinforced by coupling-modified fiber. The results indicate that the concentration and soaking time of the silane coupling agent have a great influence on the surface morphology and mechanical properties of the fiber, and that the optimal treatment concentration is 1.0% and the optimal soaking time is 60 min. The addition of coupling-modified fibers can reduce the phase angle and unrecoverable creep compliance of emulsified asphalt evaporation residue, increase the rutting factor and creep recovery rate, and improve the elastic recovery ability and permanent deformation resistance. However, excessive fiber will weaken the ductility of emulsified asphalt at low temperatures. The appropriate content of silane coupling-modified fiber (MBF) is 1.5%. After silane coupling modification, the fiber surface becomes rough and cohesion is enhanced between the fiber and the emulsified asphalt base. Silane coupling-modified basalt fiber (MBF) acts as reinforcement for stability and bridging cracks.

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“…Compared with the prevalent fiber additives in asphalt mixtures mentioned above, the use of some high-strength fiber additives, such as adding steel wool fiber (SWF) or basalt fiber (BF), into dense asphalt mixtures have also been examined [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ]. For instance, García et al [ 10 ] have explored the fiber distribution of SWF and its the electrical conductivity in dense asphalt mixtures; their results showed that thick and short fibers can disperse well in asphalt mixtures to ensure that fibers do not have a relevant influence on the particle loss resistance.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Flexural–Tensile Rheological Behavior and Its Influence Factors of Fiber-Reinforced Asphalt Mortar

Zhang

2020

Polymers

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On the basis of a modified three-dimensional (3D) random distribution fiber model, this study further investigates the flexural–tensile rheological behavior and its influence factors of fiber-reinforced asphalt mortar. First, the viscoelastic creep at a temperature of 15 °C for pure asphalt mortar as the control sample are obtained by the beam bending creep test to fit the Burgers constitutive parameters. Second, a 3D numerical model consisting of a homogeneous asphalt mortar matrix with viscoelastic parameters and short and straight fibers with elastic characteristics is built in a cuboid space on the basis of a fiber algorithm to simulate the flexural–tensile rheological behavior using ABAQUS software, and the rheological behavior of the 3D model is consistent with those of the test result. Finally, 3D numerical simulations are conducted to further analyze the effect of fiber factors (e.g., contents, aspect ratios, modulus, and fiber types) on the rheological behavior. Results show that the effect of basalt fiber (BF) compared with steel wool fiber are more significant, and increasing fiber contents and aspect ratios have a positive reinforcement effect on the rheological behavior, where BF content for 0.1%, 0.2%, and 0.3% at 3600 s compared with the control reduced by 37.5%, 53%, and 61.7%, and BF aspect ratios for 30, 40, and 50 compared with that for 20 increased by 4.3%, 16.1%, and 32.9%, respectively, but the change in fiber modulus has a minimal impact.

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Laboratory Performance Evaluation of Reinforced Basalt Fiber in Sealing Asphalt Chips

Cited by 10 publications

References 14 publications

Viscoelastic Equivalent Creep Behavior and Its Influencing Factors of Basalt Fiber‐Reinforced Asphalt Mixture under Indirect Tensile Condition

Viscoelastic Equivalent Creep Behavior and Its Influencing Factors of Basalt Fiber‐Reinforced Asphalt Mixture under Indirect Tensile Condition

Modification Mechanism and Rheological Properties of Emulsified Asphalt Evaporative Residues Reinforced by Coupling-Modified Fiber

Investigation on the Flexural–Tensile Rheological Behavior and Its Influence Factors of Fiber-Reinforced Asphalt Mortar

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