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Abstract

In order to study the effect of fiber stabilizer on the water temperature cycle damage resistance of drainage asphalt mixture, drainage asphalt mixture without fiber stabilizer and with wood fiber, polyester fiber, and basalt fiber, respectively, were compared through tests. By standard dispersion test and immersed dispersion test, the anti-spalling ability of the mixture was analyzed. Under the same asphalt condition, the standard dispersion loss of the drainage asphalt mixture was reduced to different degrees after adding fiber stabilizer, which could increase the anti-spalling property of the drainage asphalt mixture to some extent. The splitting, indirect tensile, and rutting tests were carried out on samples with and without water temperature cycle damage to analyze the water temperature cycle damage resistance of the mixture. The splitting strength of the drainage asphalt mixture increased after adding fiber stabilizer. The indirect tensile test finds that the stiffness modulus of the drainage asphalt mixture is increased after adding fiber stabilizer, and the low-temperature cracking resistance of the asphalt mixture with basalt fiber is the best, followed by wood fiber. The rutting test shows that the addition of basalt fiber stabilizer has the most obvious improvement on the dynamic stability of the drainage asphalt mixture. The results show that the addition of polyester fiber and basalt fiber can obviously improve the influence of the water immersion environment on the spalling of the drainage asphalt mixture, and basalt fiber can obviously improve the water temperature cycle damage resistance, low temperature cracking resistance, and high-temperature stability of the mixture.

Publication Date

3-17-2023

DOI

10.14048/j.issn.1671-2579.2023.01.034

First Page

194

Last Page

198

Submission Date

March 2025

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