沥青混合料汉堡车辙试验方法

栗培龙; 张争奇; 李洪华; 王秉纲

doi:10.19818/j.cnki.1671-1637.2010.02.006

沥青混合料汉堡车辙试验方法

doi: 10.19818/j.cnki.1671-1637.2010.02.006

1.
长安大学特殊地区公路工程教育部重点实验室, 陕西西安 710064
2.
中国民航机场建设集团公司, 北京 100101

基金项目:

国家自然科学基金项目 50478095

国家西部交通建设科技项目 200631881221

详细信息

作者简介:
栗培龙（1980-）, 男, 江苏邳州人, 长安大学讲师, 工学博士, 从事路面材料与结构研究

中图分类号: U414.75
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- 被引次数: 0
出版历程
- 收稿日期: 2009-12-26
- 刊出日期: 2010-04-25

Methods of Hamburg wheel tracking tests for asphalt mixture

1.
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China
2.
China Airport Construction Corporation of CAAC, Beijing 100101, China

More Information

Author Bio:
LI Pei-long (1980-), male, lecturer, PhD, +86-29-82336777, lipeilong@chd.edu.cn

摘要

摘要: 采用4种不同的沥青混合料, 分别在水浴和空气浴2种试验环境下进行50℃和60℃的汉堡车辙试验, 分析了水和温度对车辙深度的影响。进行不同试件厚度以及板式试件和SGC成型的圆柱试件的车辙试验, 分析了试件厚度和成型方式对车辙深度的影响。分析结果表明: 水环境和提高温度都会加速车辙的产生, 50℃水浴和60℃空气浴车辙深度判定系数R²大于0.93;结合沥青应用情况, 建议B级沥青采用45℃, A级沥青采用50℃, 改性沥青采用60℃的试验温度; 40 mm厚度的试件车辙深度显著偏大, 试验中不宜采用; SGC成型的圆柱试件与板式试件试验结果判定系数R²达0.95以上, 可以代替板式试件进行抗车辙性能评价。
- 路面材料 /
- 沥青混合料 /
- 汉堡车辙试验 /
- 试验方法 /
- 试验环境 /
- 试件厚度 /
- 成型方式
Abstract: Four kinds of asphalt mixtures were made and Hamburg wheel tracking tests were conducted with the specimens in the water and in the air at 50 ℃ and 60 ℃ individually, the influence of water and temperature on rutting depth was analyzed. The tests were carried on to analyze the influence of specimen thickness and molding ways on rutting depth. The result indicates that water and raising test temperature can accelerate rutting appearance. The correlation coefficients are over 0.93 when the specimens are in the water at 50 ℃ and in the air at 60 ℃. According to the application of asphalt types, the right test temperatures of B-grade asphalt, A-grade asphalt and modified asphalt are 45 ℃, 50 ℃ and 60 ℃ respectively. The rutting depth of 40 mm-thickness specimen is much larger than that of others, which is not applicable for experiments.The test result of SGC cylindrical specimen has good relationship with that of plate specimen, their correlation coefficient is more than 0.95, so it can be used to evaluate the rut-resistance of asphalt mixture instead of plate specimen.
- road material /
- asphalt mixture /
- Hamburg wheel tracking test /
- test method /
- test environment /
- specimen thickness /
- molding way

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图 1 不同条件下混合料车辙比较

Figure 1. Comparison of rutting depths under different test conditions

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图 2 2种试验条件下车辙深度的相关性

Figure 2. Relationship of rutting depths under two conditions

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图 3 2种温度水浴的车辙深度

Figure 3. Rutting depths of specimens in water at 50 ℃ and 60 ℃

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图 4 试件成型

Figure 4. Specimen molding

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图 5 2种成型方式车辙深度的关系

Figure 5. Relationship of rutting depths with two molding ways

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表 1 沥青基本指标

Table 1. Basic indices of asphalts

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表 2 沥青混合料级配

Table 2. Gradations of asphalt mixtures

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表 3 50 ℃水浴混合料的车辙深度

Table 3. Rutting depths of mixture specimens in water at 50 ℃

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表 4 60℃水浴不同沥青混合料的车辙深度

Table 4. Rutting depths of mixture specimens in water at 60℃

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表 5 60 ℃空气浴不同沥青混合料的车辙深度

Table 5. Rutting depths of mixture specimens in air at 60 ℃

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表 6 不同厚度试件车辙深度

Table 6. Rutting depths of different thickness specimens

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表 7 不同成型方式的车辙深度

Table 7. Rutting depths with different molding ways

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参考文献(10)

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