不同工况对再生沥青混合料压实特性的影响
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

U416.2

基金项目:

江西省自然科学基金(20202BABL214046);江西省教育厅青年科学基金(GJJ190361);中央高校基金基本业务 费(长安大学)(300102210501);中铁十六局集团科技项目(07ML3B-KYJS-2020-0001)


Influence of Different Working Conditions on Compaction Characteristics of Plant Recycled Hot-mix Asphalt (RHMA) Mixture
Author:
Affiliation:

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:

    为研究级配、废旧沥青混合料(Reclaimed asphalt pavement, RAP)掺量、压实温度对再生沥青混合料压实特性指标空隙率、压实能量指数、压实速率、锁点的影响。设计正交试验,采用极差、方差分析因素与压实特性指标之间的影响程度,建立因素与压实特性指标之间的回归模型,分析了变化规律。在此基础上,采用实体工程进一步论证了不同因素对压实特性的影响。研究结果表明:级配、RAP掺量、压实温度均显著影响再生沥青混合料压实特性指标,级配的影响程度最高,RAP掺量影响程度相对较低;因素与压实特性指标空隙率、压实能量指数之间满足二次回归模型,且空隙率、压实能量指数与级配、RAP掺量、压实温度的变化呈负相关;以福银高速三明段养护工程为例,进一步论证了级配对再生沥青混合料空隙率的影响,发现越细的级配越容易压实。

    Abstract:

    In order to investigate the influence of gradation, RAP content and compaction temperature on the compaction characteristics of RHMA, such as void ratio(VV), compaction energy index(CEI), slope of accumulated compaction energy(K) and lock point. The orthogonal experiment was designed, and the influence degree between the factors and the compaction characteristic index were analyzed by range and variance analysis, and variation law was analyzed by regression model. In addition, the influence of different factors on compaction characteristics is further demonstrated by field construction. The results show that gradation, RAP content and compaction temperature have significant influence on the compaction characteristics of RHMA, and the influence degree of gradation is higher than that of RAP content. The relationship between the factors and the compaction characteristic indexes of VV and CEI were established by quadratic regression model, and the VV and CEI are negatively correlated with the changes of gradation, RAP content and compaction temperature. The proposed results was proved valid in project of the Sanming section of Fuzhou-Yinchuan expressway, and the gradation can significantly affect the VV of recycled asphalt mixture, and the finer the gradation, the easier the compaction.

    参考文献
    相似文献
    引证文献
引用本文

余森开,仰建岗,黄锦化,等. 不同工况对再生沥青混合料压实特性的影响[J]. 科学技术与工程, 2021, 21(30): 13102-13108.
Yu Senkai, Yang Jiangang, Huang Jinhua, et al. Influence of Different Working Conditions on Compaction Characteristics of Plant Recycled Hot-mix Asphalt (RHMA) Mixture[J]. Science Technology and Engineering,2021,21(30):13102-13108.

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:2021-06-15
  • 最后修改日期:2021-09-25
  • 录用日期:2021-07-22
  • 在线发布日期: 2021-11-10
  • 出版日期:
×
律回春渐,新元肇启|《科学技术与工程》编辑部恭祝新岁!
亟待确认版面费归属稿件,敬请作者关注