Low-temperature Viscoelastic Model for Hot-Poured Sealant of Asphalt Pavement
[1]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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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
33
Number of periods:
2012 06
Page number:
54-58
Column:
Public date:
2012-11-10
- Title:
- Low-temperature Viscoelastic Model for Hot-Poured Sealant of Asphalt Pavement
- Keywords:
- road engineering; viscoelasticity; standard linear solid model; hot-poured sealant; strain; stress relaxation
- CLC:
- U414
- 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.
- References:
- -
- Similar References:
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Last Update:
1900-01-01
