沥青玛蹄脂粘弹性特性静态蠕变试验研究
DOI:
CSTR:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

U414

基金项目:

国家自然科学基金 , 国家外专局出国(境)培训项目


Study on Static Creep Test for Viscoelastic Property of Asphalt Mastic
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:

    为了深层揭示沥青玛蹄脂的粘弹性特性,采用Burgers粘弹性模型作为粘弹性力学行为的数学描述,通过沥青玛蹄脂静态剪切蠕变试验,研究了温度对沥青玛蹄脂粘弹性特性的影响.结果表明:Burgers粘弹性模型四参数随温度升高呈负指数递减;沥青玛蹄脂蠕变柔度随温度升高呈正指数增加;沥青玛蹄脂的瞬时弹性随温度升高而递减;粘性流动随温度升高而递增;延迟弹性在蠕变初期随着温度升高先增加后减小,在蠕变中、后期随着温度升高而递减;沥青玛蹄脂的粘流动性弹比随温度升高呈正指数增加,在高温区其粘性远远大于弹性,沥青玛蹄脂表现为粘性.

    Abstract:

    To further reveal the viscoelastic property of asphalt mastic,the static shear creep test was conducted through dynamic shear rheometer(DSR) and the effect of temperature on the viscoelastic property of asphalt mastic was studied with Burgers model as mathematical description of viscoelastic behavior.The research results indicate:(1)The four parameters of Burgers model assume negative exponent degression with the raise of temperature.(2)The creep compliance of asphalt mastic assumes positive exponent increase with the raise of temperature.(3)The instantaneous elasticity of asphalt mastic decreases with the raise of temperature;the viscous fluidity increases with the raise of temperature;the delayed elasticity increases initially and decreases later with the raise of temperature during the prophase of creep;during the metaphase and anaphase of creep,the delayed elasticity decreases with the raise of temperature.(4)The ratio of viscosity to elasticity of asphalt mastic assumes positive exponent increase with the raise of temperature.In the high temperature region,viscosity is far greater than elasticity and asphalt mastic appears to be viscous.

    参考文献
    相似文献
    引证文献
引用本文

侯航舰,胡霞光.沥青玛蹄脂粘弹性特性静态蠕变试验研究[J].建筑材料学报,2008,(3):

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:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期:
  • 出版日期:
文章二维码