Laboratory Evaluation of the Effect of the Combination of Zinc Nano Oxide and Basalt Fiber on the Performance of Bitumen and Asphalt Mixture

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Chobdar Hamin; Farajollahi Amin; Ameli Alireza

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Journal Paper

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Journal: JOURNAL OF TRANSPORTATION RESEARCH Year:2024 | Volume: | Issue: Page(s): 355-368

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Information Journal Paper

Title

Laboratory Evaluation of the Effect of the Combination of Zinc Nano Oxide and Basalt Fiber on the Performance of Bitumen and Asphalt Mixture

Author(s)

Chobdar Hamin | Farajollahi Amin | Ameli Alireza | Issue Writer Certificate

Keywords

Road engineeringQ4

Composite Modified BitumenQ4

Basalt FiberQ4

Nano zinc oxideQ4

Asphalt MixtureQ4

Abstract

In order to improve the quality of road performance and solve the problem of deterioration in normal asphalt pavement during service, in this research, a 5.3% aluminate agent was used to modify the surface of Nano zinc oxide and prepare composite modified asphalt with nano oxide and Basalt Fiber 1 (BF). It was used as a modifier. First, the initial performance of the different types was examined. Then, a dynamic shear rheology test was conducted to analyze the high temperature rutting performance of composite modified asphalt at different temperatures and frequencies. Then, using the flexural creep hardness test, the low temperature properties of asphalt modified with composite were investigated. The results show that the aging performance of asphalt modified with ZnO/BF nanocomposite is significantly improved after adding fibers to the modified asphalt. The average mass loss ratio is only 0.192%. At 46°C, the rutting coefficient of composite-modified asphalt increased by 62.3%. The main frequency curve is always at the highest position and continues to increase, indicating a significant improvement in the high-temperature rutting performance of the composite-modified asphalt. At 24°C, the S value of the creep modulus of asphalt modified with composite increased by 24.9%. In addition, there is no obvious effect of low temperature improvement, but the range of variation of creep tangent slope m of modified asphalt is reduced after aging, which further indicates that the addition of a modifier can reduce the effect of aging on asphalt.

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