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Corresponding Author

吴旷怀, 男, 博士, 教授. E-mail: wukuanghuai@163.com

Abstract

To investigate the fatigue performance and reflection cracking resistance of super-flexible fluid mastic asphalt (FMA ) mixtures,this study designed a super-flexible FMA- 13 mixture by the mastic flow for filling (MaFF ) method.The effects of temperature and maximum horizontal tensile displacement on the cracking resistance of both FMA- 13 and GAC- 13 (as the control ) mixtures were explored via the Overlay Tester.Additionally,small-scale accelerated pavement loading tests were conducted to analyze the effect of load cycles on the rebound modulus of the FMA- 13 mixture.A nonlinear fatigue damage model was employed to predict the fatigue life of both mixtures.The results indicate that when the temperature decreases from 25 °C to 0 ° C,the load loss rate of the FMA- 13 mixture increases from 63.2% to 72.5%,while that of the GAC- 13 mixture significantly rises from 82.8% to 94%.Temperature has a significant effect on the reflection cracking resistance of the GAC- 13 mixture,while the maximum horizontal tensile displacement does not significantly affect the reflection cracking resistance of the FMA- 13 mixture.When the number of load cycles increases from 0 to 1 million,the rebound modulus of the GAC- 13 mixture decreases by 32%,whereas the FMA- 13 mixture experiences only a 24% decrease.Furthermore,the fatigue life of the FMA- 13 mixture far exceeds that of the GAC- 13 mixture.These experimental results demonstrate that FMA mixtures possess superior crack resistance and fatigue performance,enabling them to be used as functional pavement materials in stress-absorbing layers.They can address issues such as reflection cracking in pavements,offering broad application prospects.

Publication Date

12-24-2025

DOI

10.14048/j.issn.1671-2579.2025.06.006

First Page

45

Last Page

57

Submission Date

December 2025

Reference

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