[1]李峰,黄颂昌,石小培..沥青路面加热型密封胶的低温黏弹性模型[J].郑州大学学报(工学版),2012,33(06):54-58.[doi:10.3969/j.issn.1671-6833.2012.06.013]
　LI Feng,HUANG Songchang,SHI Xiaopei.Low-temperature Viscoelastic Model for Hot-Poured Sealant of Asphalt Pavement[J].Journal of Zhengzhou University (Engineering Science),2012,33(06):54-58.[doi:10.3969/j.issn.1671-6833.2012.06.013]
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沥青路面加热型密封胶的低温黏弹性模型()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
33卷
期数:
2012年06期
页码:
54-58
栏目:
出版日期:
2012-11-10

文章信息/Info

Title:
Low-temperature Viscoelastic Model for Hot-Poured Sealant of Asphalt Pavement
作者:
李峰; 黄颂昌; 石小培.
交通运输部公路科学研究院 道路结构与材料交通行业重点实验室,北京,100088, 交通运输部公路科学研究院 道路结构与材料交通行业重点实验室,北京,100088, 交通运输部公路科学研究院 道路结构与材料交通行业重点实验室,北京,100088
Author(s):
LI Feng; HUANG Songchang; SHI Xiaopei
Key Laboratory of Road Structure & Material, Research Institute of lighway, Ministry of Transport, Beijing 100088, China
关键词:
道路工程;  黏弹性;  标准线性固体模型;  加热型密封胶;  应变;  应力松弛
Keywords:
road engineering;  viscoelasticity;  standard linear solid model;  hot-poured sealant;  strain;  stress relaxation
分类号:
U414
DOI:
10.3969/j.issn.1671-6833.2012.06.013
摘要:
为了描述加热型裂缝密封胶在低温条件下的应力-应变本构关系,以标准线性固体模型为基础,利用玻尔兹曼叠加原理对密封胶在拉伸-松弛过程中的力学行为进行分析,建立密封胶拉伸-松弛阶段的理论方程.采用ASTM D5329的粘结试验方法,选择6种加热型密封胶进行常应变拉伸-应力松弛试验,3种应变量分别为2.25 mm、3.75 mm和6.90 mm,采用标准线性固体模型拟合试验数据,求得拉伸和应力松弛回归方程.实验结果表明,标准线性固体模型可以较理想地拟合密封胶在低温条件下的黏弹性力学行为,应变量越小,模型的拟合精度越高.
Abstract:
In order to describe the constitutive stress-strain relationship of hot-poured biluminous crack sealants at low service temperatures, the mechanical behavior of extension-relaxation process was analyzed by Boltzmann superposition principle based on standard linear model, The extension-relaxation equations of sealantswere deduced. ’The constant strain extension and stress relaxation tests of six sealants were conducted with thebond test of AST’M D5329. Three strains were 2. 25 mm, 3. 75 mm and 6.90 mm respectively. Standard linearsolid model was used to characterize the test results, and the fitting equations of extension and relaxation weredeveloped. The equations displayed agreement with the test results very well both in the extension and relaxation process. It tured out that the mechanical behavior of hot-poured sealants can be accurately described bystandard linear solid model, and the fitting accuracy of the model is higher when the strain is smaller.

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更新日期/Last Update: 1900-01-01