欢迎访问《中外公路》官方网站,今天是
分享到:
回旋车辙试验仪与沥青混合料抗扭转性能
作者:
作者单位:

(1.华东理工大学 石油加工研究所 ,上海市 200237;2.上海城建日沥特种沥青有限公司 ,上海市 200436;3.上海公路桥梁 (集团)有限公司,上海市 200433)

作者简介:

姚鸿儒,男,博士研究生,工程师.E-mail:yaohongru@126.com

通讯作者:

周晓龙,男,博士,教授,博士生导师.E-mail:xiaolong@ecust.edu.cn

中图分类号:

U414

基金项目:

上海市2021年度“科技创新行动计划”启明星项目(编号:21QB1401100)


Rotating Wheel Tracking Tester and Torsional Resistance of Asphalt Mixtures
Author:
Affiliation:

(1.Petroleum Processing Research Center , East China University of Science and Technology , Shanghai 200237,China ;2.Shanghai Urban Construction NichiReki Special Asphalt Co ., Ltd., Shanghai 2004 36,China ;3.Shanghai Road and Bridge (Group ) Co., Ltd., Shanghai 200433,China )

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    沥青路面在受到扭转力时,容易出现塑性变形和骨料 飞散等病害,当前对于沥青混合料抗扭转性能的评价,尚无规范的试验方法和设备。为了研究沥青混合料抵抗扭转剪切性能的有效评价手段,该文介绍日本开发的 3种设备的构造及工作原理,采用回旋车辙试验评价 5种典型沥青混合料的抗扭转性能,分析沥青混合料抗扭转性能的影响因素。结果表明:沥青混合料的结构类型和胶结料种类对其抗扭转性能均有显著影响。虽然 I-D改性沥青 SMA- 13混合料和高黏度改性沥青 OGFC- 13混合料具有相仿的动稳定度,但骨架空隙型混合料的抗扭转性能比骨架密实型更差。不同胶结料种类的沥青混合料在抗扭转性能上按优劣排序为:高黏度改性沥青 +高模量剂、高黏度改性沥青、I-D改性沥青。半柔性铺装虽然抗扭转性能优异,但容易产生开裂。

    Abstract:

    Asphalt pavement is prone to pla stic deformation and aggregate raveling when it is in torsion.At present,there is no standard test method and equipment to evaluate the torsional resistance of asphalt mixtures.In order to study the effective evaluation method for the torsional shear resistance of asphalt mixtures,this paper introduced the structures and working principles of three kinds of equipment developed in Japan.The torsional resistance of five typical asphalt mixtures was evaluated by rotating wheel tracking tests,and factors affecting the torsional resistance of asphalt mixtures were analyzed.The results show that the types of structures and binders of asphalt mixtures have an obvious influence on the torsional resistance of asphalt mixtures.Though I-D modified asphalt SMA- 13 mixtures and high-viscosity modified asphalt OGFC- 13 mixtures have similar dynamic stability,the torsional resistance of void-skeleton asphalt mixtures is worse than that of dense-skeleton ones.The torsional resistance of asphalt mixtures with different types of binders in descending order is high-viscosity modified asphalt + high modulus additive,high-viscosity modified asphalt,and I-D modified asphalt.Although semi-flexible pavement has excellent torsional resistance,it cracks easily.

    参考文献
    相似文献
    引证文献
引用本文

姚鸿儒,王强,陆广衍,等.回旋车辙试验仪与沥青混合料抗扭转性能[J].中外公路,2024,44(4):91-96.
YAO Hongru, WANG Qiang, LU Guangyan, et al. Rotating Wheel Tracking Tester and Torsional Resistance of Asphalt Mixtures[J]. Journal of China and Foreign Highway,2024,44(4):91-96.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2022-06-13
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2024-07-30
  • 出版日期:
文章二维码
网站二维码
期刊公众号