高模量沥青稳定碎石性能试验

钱振东; 舒富民

doi:10.19818/j.cnki.1671-1637.2009.03.004

高模量沥青稳定碎石性能试验

doi: 10.19818/j.cnki.1671-1637.2009.03.004

东南大学智能运输系统研究中心, 江苏南京 210096

基金项目:

国家自然科学基金项目 50578038

详细信息

作者简介:
钱振东(1969-), 女, 江苏南通人, 东南大学教授, 工学博士, 从事路面工程和桥面铺装技术研究

中图分类号: U414.75
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- 被引次数: 0
出版历程
- 收稿日期: 2008-12-18
- 刊出日期: 2009-06-25

Performance experiments of high-modulus asphalt treated base

ITS Research Center, Southeast University, Nanjing 210096, Jiangsu, China

More Information

Author Bio:
QIAN Zhen-dong(1969-), female, professor, PhD, +86-25-83792868, qianzd@seu.edu.cn

摘要

摘要: 从高模量沥青稳定碎石的材料组成设计出发, 通过动态模量和抗压回弹模量两种力学设计参数的测定, 研究了高模量沥青稳定碎石的力学性能, 通过车辙试验、冻融劈裂试验、劈裂试验及疲劳试验, 分析了高模量沥青稳定碎石路用性能。试验结果表明: 不同类型沥青对沥青稳定碎石的动态模量影响较大, 高模量沥青稳定碎石的抗压回弹模量比普通沥青稳定碎石和改性沥青碎石分别提高了约24%和19%, 且高模量沥青稳定碎石具有良好的高温性能、水稳定性能和疲劳性能, 但低温性能较差。
- 沥青路面 /
- 高模量沥青稳定碎石 /
- 动态模量 /
- 路用性能
Abstract: According to the material composition design of high-modulus asphalt treated base(ATB), the mechanical properties were analyzed through measuring their dynamic moduli and compression rebound moduli of high-modulus ATB, modified ATB and conventional ATB, and road service performances were studied through wheel rutting test, freeze-thaw split test, split test and fatigue test.Test result shows that various types of asphalts have relatively great influences on the dynamic moduli of ATBs.The compression rebound modulus of high-modulus ATB(AH-30) is 1.24 times as much as that of ATB-25(AH-70), and 1.19 times as much as that of ATB-25(SBS).Compared with other ATBs, high-modulus ATB has better high-temperature performance, water stability performance and fatigue performance, except for slightly poor low-temperature performance.
- asphalt pavement /
- high-modulus asphalt treated base /
- dynamic modulus /
- road service performance

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图 1 3种沥青稳定碎石的动稳定度

Figure 1. Dynamic stabilities of three types of ATB

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表 1 3种沥青的技术指标

Table 1. Technical indices of three asphalts

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表 2 ATB-25级配

Table 2. Gradation of ATB-25

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表 3 加载频率和温度对动态模量的影响

Table 3. Influences of loading frequency and temperature on dynamic modulus

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表 4 高模量沥青稳定碎石的︱E^*︱₂₀₀/︱E^*︱₀

Table 4. ︱E^*︱₂₀₀/︱E^*︱₀of high-modulus ATB

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表 5 抗压回弹模量试验结果

Table 5. Test results of compression rebound modulus

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表 6 动静态模量对比

Table 6. Comparison of dynamic modulus and static resillent modulus

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表 7 车辙试验结果

Table 7. Results of wheel rutting test

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表 8 冻融劈裂试验结果

Table 8. Results of freeze-thaw split test

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表 9 低温劈裂试验结果

Table 9. Results of split test under low temperature

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表 10 疲劳试验结果

Table 10. Results of fatigue test

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