+高级检索
基于低温性能的橡胶颗粒环氧沥青混合料研究
DOI:
作者:
作者单位:

作者简介:

通讯作者:

基金项目:


Research on Rubber Particles Epoxy Asphalt Mixture Based on Low Temperature Performance
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
    摘要:

    为了分析橡胶颗粒对环氧沥青混合料低温性能的改善作用,在选择形状特征及硬度合适的橡胶颗粒的前提下,基于抗弯拉强度、最大弯拉应变、弯曲劲度模量、脆化点温度及应变能密度对不同橡胶颗粒体积掺量下的环氧沥青混合料的低温性能进行研究,并通过室内试验对不同橡胶颗粒体积掺量下的环氧沥青混合料的水稳定性及高温性能进行验证.结果表明:橡胶颗粒的细长扁平颗粒含量越小、邵尔A型硬度越大,橡胶颗粒环氧沥青混合料的压实效果及抗松散性越好;体积掺量合适的橡胶颗粒对环氧沥青混合料的抗弯拉强度、水稳定性及高温性能影响不大,但能显著提高其低温变形能力,降低其脆化点温度,改善其低温性能;在-15 ℃时,5%橡胶颗粒体积掺量下的环氧沥青混合料相对未掺加橡胶颗粒的环氧沥青混合料,应变能密度提高了108.0%.

    Abstract:

    In order to analyze the improvement effects of rubber particles on low temperature performance of epoxy asphalt mixture, the low temperature performance of the epoxy asphalt mixture with different rubber particles volume content was studied choosing the rubber particles with appropriate shape feature and hardness, based on the flexural strength, flexural strain, flexural stiffness modulus, temperature of brittle point and strain energy density. The moisture susceptibility and high temperature performance of epoxy asphalt mixture with different rubber particles volume content were then validated by laboratory tests. The results show that the less the flat and elongated particle contents of rubber particles are, the greater the Shore A hardness of rubber particles is, the better the compaction effect and raveling resistance of rubber particles epoxy asphalt mixture are. The influence of rubber particles on flexural strength, moisture susceptibility and high temperature performance of epoxy asphalt mixture is not significant. However, the rubber particles with appropriate content can significantly increase the low temperature deformability of epoxy asphalt mixture, which can reduce the temperature of brittle point for epoxy asphalt mixture, and improve the low temperature performance of epoxy asphalt mixture. Compared with the epoxy asphalt mixture without rubber particles, the strain energy density of the epoxy asphalt mixture with rubber particles volume content of 5% is increased to 108.0 % at -15 ℃.

    参考文献
    相似文献
    引证文献
文章指标
  • PDF下载次数:
  • HTML阅读次数:
  • 摘要点击次数:
  • 引用次数:
引用本文

薛永超,钱振东,夏荣辉.基于低温性能的橡胶颗粒环氧沥青混合料研究[J].湖南大学学报:自然科学版,2016,43(9):120~128

复制
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2016-10-08
  • 出版日期:
作者稿件一经被我刊录用,如无特别声明,即视作同意授予我刊论文整体的全部复制传播的权利,包括但不限于复制权、发行权、信息网络传播权、广播权、表演权、翻译权、汇编权、改编权等著作使用权转让给我刊,我刊有权根据工作需要,允许合作的数据库、新媒体平台及其他数字平台进行数字传播和国际传播等。特此声明。
关闭