中外公路2025，Vol.45Issue(6)：45-57,13.DOI:10.14048/j.issn.1671-2579.2025.06.006
超柔型FMA混合料抗反射开裂和疲劳性能研究
Reflection Cracking Resistance and Fatigue Performance of Super-Flexible FMA Mixture
摘要
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 ℃ to 0 ℃,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.关键词
反射裂缝/Overlay Tester试验/FMA混合料/抗裂性能/疲劳性能Key words
reflection cracking/Overlay Tester test/FMA mixture/crack resistance/fatigue performance分类
交通工程引用本文复制引用
LAN Yong,DENG Xinghe,ZHANG Zida,WU Kuanghuai,DING Weizhe,GUAN Xuebing,PENG Tiekun..超柔型FMA混合料抗反射开裂和疲劳性能研究[J].中外公路,2025,45(6):45-57,13.基金项目
国家自然科学基金资助项目(编号:51878193) （编号:51878193）
广东省交通集团研发项目(编号:JT2023YB08) （编号:JT2023YB08）
