Quantitative Analysis of Effect and Interaction of Diatomite and Basalt Fiber on Asphalt Performance

Cheng, Yongchun; Li, Liding; Zhang, Yu-Wei; Lv, Zehua; Zhu, Chunfeng

doi:10.1061/(asce)mt.1943-5533.0002948

Cited by 14 publications

(3 citation statements)

References 28 publications

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“…The particle size of the GTR was 40 mesh. Following is how the GTRSA was produced [ 25 , 26 ]: first of all, the SBS-modified asphalt was melted to a flowing state at 170 ± 5 °C; secondly, the GTR was blended into the melted SBS-modified asphalt [ 20 ], and the modified temperature was then raised to 190 ± 5 °C and the sheared velocity was set at 3000 rpm for 40 min; subsequently, the compound-modified asphalt was then stirred at 1000 rpm for 20 min; finally, the stirred GTRSA was swollen at 175 ± 5 °C for 60 min.…”

Section: Methodsmentioning

confidence: 99%

Evaluation and Correlation Analysis of the Rheological Properties of Ground Tire Rubber and Styrene Butadiene Styrene Compound-Modified Asphalt

Tan

et al. 2023

Polymers

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With the increase in highway traffic volume, many waste tires are being produced, which puts serious pressure on the global ecological environment. Processing waste tires into powder and adding them to asphalt is an important and effective way to solve this noticeable environmental challenge. In this paper, to produce ground tire rubber (GTR) and styrene-butadiene-styrene (SBS) compound-modified asphalt, GTR was put into SBS-modified asphalt (GTRSA). Subsequently, some ordinary property tests, frequency sweep tests, and multiple stress creep recovery tests were conducted to investigate the conventional properties and rheological properties of GTRSA. Moreover, the 2S2P1D (two springs, two parabolic elements, and one dashpot) model was adopted to analyze the consequences of adding GTR content on the rheological properties of GTRSA. Finally, the Pearson correlation coefficient was employed to reveal the connection between the conventional properties and the rheological properties. The results show that GTR has a great impact on improving the rutting resistance, thermo-sensitive performance, shear resistance capability, stress sensitivity, and creep recovery performance of GTRSA. Adding 20% GTR can improve the creep recovery rate to 80.8%. The 5 °C ductility index suggests that GTR makes a difference to the low-temperature properties. The rheological properties and conventional properties had a strong linear link.

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Section: Methodsmentioning

confidence: 99%

Evaluation and Correlation Analysis of the Rheological Properties of Ground Tire Rubber and Styrene Butadiene Styrene Compound-Modified Asphalt

Tan

et al. 2023

Polymers

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“…e three types of asphalt mixtures were divided into seven groups: WRM, DWRM with 5 wt.% diatomite, 7.5 wt.% diatomite, and 10 wt.% diatomite, BWRM with 0.2 wt.% basalt fibers, 0.3 wt.% basalt fibers, and 0.4 wt.% basalt fibers, and the specific preparation scheme is shown in Table 5. e content of diatomite and basalt fibers is determined by the previous research [28][29][30]. According to Table 5, the diatomite (added in substitution to mineral filler), basalt fiber (relative to mineral mass ratio), WRA, and aggregate were mixed to prepare the standard Marshall specimens (ϕ101.6 mm × 63.5 mm) and the rutting specimens (300 mm × 300 mm × 50 mm) for subsequent testing.…”

Section: Asphalt Mixtures Preparationmentioning

confidence: 99%

Effect of Diatomite and Basalt Fibers on Pavement Performance and Vibration Attenuation of Waste Tires Rubber-Modified Asphalt Mixtures

Cheng

et al. 2020

Mathematical Problems in Engineering

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As an eco-friendly pavement material, waste tires rubber-modified asphalt mixtures (WRMs) have been applied in pavement engineering widely. To further improve the performance and adaptability of WRM, diatomite and basalt fibers are, respectively, added to WRM. Subsequently, the Marshall tests, the rutting tests, the low-temperature splitting tests, the freeze-thaw splitting tests, and the vibration attenuation tests are conducted to study the effect of diatomite and basalt fibers on pavement properties of WRM. Furthermore, the correlation degree between the content of diatomite, basalt fibers, asphalt, and the pavement properties of WRM is analysed by the grey correlation grade analysis (GCGA). The results show that the addition of diatomite and basalt fibers can significantly improve the pavement and vibration attenuation properties of WRM. The improvement of high-temperature permanent deformation resistance, low-temperature cracking resistance, and water damage resistance of WRM is mainly attributed to diatomite, basalt fibers, and asphalt-aggregate ratio, respectively. The improvement of the vibration attenuation of WRM by diatomite and basalt fibers is mainly attributed to the increase of waste tires rubber-modified asphalt (WRA) content caused by adding diatomite and basalt fibers.

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“…At the same time, the property changes will also give rise to the deterioration of road performance, which immediately affects road durability. At the same time, the current research on basalt fiber reinforced asphalt mixture mainly focuses on road performance and only studies aging or freeze-thaw cycles (Cheng et al, 2019b;Huang et al, 2022;Wu Z. et al, 2020;Zhou et al, 2020), and the coupling effect of the two on the performance and life evolution of the asphalt mixture is relatively small. Therefore, it is indispensable to comprehensively consider the impact of freezethaw cycles and the coupling effect of asphalt aging to evaluate the comprehensive performance of basalt fibers more accurately.…”

Section: Introductionmentioning

confidence: 99%

Laboratory Investigation on Pavement Performance of Basalt Fiber-Reinforced Asphalt Mixture Under the Coupling Effect of Freeze-Thaw Cycles and Aging

Liang

Luo

2022

Front. Mater.

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Due to the significant temperature difference and high solar radiation in high-altitude areas, the asphalt pavement has been in freeze-thaw cycles and radiation service conditions for a long time, resulting in a shorter service life. To extend the service life of asphalt pavement in high-altitude areas, this study uses basalt fiber to toughen the asphalt mixture, and the service characteristics of the asphalt pavement under the coupled effects of freeze-thaw cycles and aging were evaluated. First, the freeze-thaw cycles, aging time, and basalt fiber content were selected as independent variables to conduct the Box–Behnken design (BBD) test design. Consequently, the corresponding response surface model was established. Based on the rutting test, three-point bending test, and indirect tensile test, the optimum content of basalt fiber was obtained. Finally, the fatigue properties of the asphalt mixture by the four-point bending fatigue test were compared under the optimum content. The results showed the consequences of freeze-thaw cycles will reduce the road properties of asphalt and give rise to damage to the asphalt; among them, the indirect tensile strength was decreased by 21.7% at most (the number of freeze-thaw cycles from 10 to 30). Aging will reduce the fatigue life of the asphalt mixture, but its dynamic stability, flexural tensile strength, and slitting strength will be enhanced to a certain extent; among them, the dynamic stability can be improved by up to 28.1% (aging from 4 to 12 h). Basalt fiber can increase the flexural tensile strength, dynamic stability, and spitting strength; the optimum content is 0.35% of asphalt mixtures. Furthermore, the fatigue life of basalt fiber-reinforced asphalt mixture can be significantly improved, which can reduce the influence of freeze-thaw cycles and aging. In addition, the unit price of basalt fiber-reinforced asphalt mixture is only 6.9% higher than that of SBS-modified asphalt mixture, which has significant economic benefits. Under experimental conditions, the effect of aging on the properties of the asphalt mixture is greater than that of the freeze-thaw cycle. This research shows that careful consideration of the road behavior of basalt fiber-reinforced asphalt mixture under freeze-thaw cycles and aging is essential for the pavement durability design.

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Quantitative Analysis of Effect and Interaction of Diatomite and Basalt Fiber on Asphalt Performance

Cited by 14 publications

References 28 publications

Evaluation and Correlation Analysis of the Rheological Properties of Ground Tire Rubber and Styrene Butadiene Styrene Compound-Modified Asphalt

Evaluation and Correlation Analysis of the Rheological Properties of Ground Tire Rubber and Styrene Butadiene Styrene Compound-Modified Asphalt

Effect of Diatomite and Basalt Fibers on Pavement Performance and Vibration Attenuation of Waste Tires Rubber-Modified Asphalt Mixtures

Laboratory Investigation on Pavement Performance of Basalt Fiber-Reinforced Asphalt Mixture Under the Coupling Effect of Freeze-Thaw Cycles and Aging

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