Influence of Asphalt Visco-Elastic Properties on Flexible Pavement Performance
Even though every layer of pavement structure is important and affects pavement performance, the asphalt layers visco-elasticity plays significant role. Bitumen properties, as well as asphalt mixture properties, vary depending on temperature and loading conditions. These variations influence entire...
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Format: | Article |
Language: | English |
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RTU Press
2016-12-01
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Series: | The Baltic Journal of Road and Bridge Engineering |
Subjects: | |
Online Access: | https://bjrbe-journals.rtu.lv/article/view/3408 |
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author | Rita Kleizienė Audrius Vaitkus Donatas Čygas |
author_facet | Rita Kleizienė Audrius Vaitkus Donatas Čygas |
author_sort | Rita Kleizienė |
collection | DOAJ |
description | Even though every layer of pavement structure is important and affects pavement performance, the asphalt layers visco-elasticity plays significant role. Bitumen properties, as well as asphalt mixture properties, vary depending on temperature and loading conditions. These variations influence entire pavement bearing capacity and has to be evaluated in pavement design. The main challenge is material behaviour description through simple models to incorporate them to pavement design. Generally, pavements are designed using Multilayer Elastic Theory assuming that all materials are elastic, isotropic, and homogenous. This paper presents analysis of two pavement structures response calculated according to three pavement design approaches. The dynamic modulus and phase angle of asphalt mixtures was estimated using Hirsch model after binder complex shear modulus tests. The visco-elastic behaviour was described with rheological Huet-Sayegh model and pavement responses estimation was done using MnLayer and ViscoRoute2 software. The analysis reviled static and dynamic load influence on pavement structure based on elastic and visco-elastic properties of asphalt layers. This allowed optimisation of layer thicknesses and determination of more cost beneficial pavement structure with appropriate performance. |
first_indexed | 2024-12-14T21:06:09Z |
format | Article |
id | doaj.art-8cfa8e6102064ad5af24ad4a8e629284 |
institution | Directory Open Access Journal |
issn | 1822-427X 1822-4288 |
language | English |
last_indexed | 2024-12-14T21:06:09Z |
publishDate | 2016-12-01 |
publisher | RTU Press |
record_format | Article |
series | The Baltic Journal of Road and Bridge Engineering |
spelling | doaj.art-8cfa8e6102064ad5af24ad4a8e6292842022-12-21T22:47:26ZengRTU PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882016-12-0111410.3846/bjrbe.2016.361856Influence of Asphalt Visco-Elastic Properties on Flexible Pavement PerformanceRita Kleizienė0Audrius Vaitkus1Donatas Čygas2Road Research Institute, Vilnius Gediminas Technical University, Linkmenų g. 28, 08217 Vilnius, LithuaniaRoad Research Institute, Vilnius Gediminas Technical University, Linkmenų g. 28, 08217 Vilnius, LithuaniaDept of Roads, Vilnius Gediminas Technical University, Saulėtekio al. 11, 10223 Vilnius, LithuaniaEven though every layer of pavement structure is important and affects pavement performance, the asphalt layers visco-elasticity plays significant role. Bitumen properties, as well as asphalt mixture properties, vary depending on temperature and loading conditions. These variations influence entire pavement bearing capacity and has to be evaluated in pavement design. The main challenge is material behaviour description through simple models to incorporate them to pavement design. Generally, pavements are designed using Multilayer Elastic Theory assuming that all materials are elastic, isotropic, and homogenous. This paper presents analysis of two pavement structures response calculated according to three pavement design approaches. The dynamic modulus and phase angle of asphalt mixtures was estimated using Hirsch model after binder complex shear modulus tests. The visco-elastic behaviour was described with rheological Huet-Sayegh model and pavement responses estimation was done using MnLayer and ViscoRoute2 software. The analysis reviled static and dynamic load influence on pavement structure based on elastic and visco-elastic properties of asphalt layers. This allowed optimisation of layer thicknesses and determination of more cost beneficial pavement structure with appropriate performance.https://bjrbe-journals.rtu.lv/article/view/3408asphalt dynamic moduluspavement designpavement performancepredictive modelmaster curvemul¬tilayer-elastic theory. |
spellingShingle | Rita Kleizienė Audrius Vaitkus Donatas Čygas Influence of Asphalt Visco-Elastic Properties on Flexible Pavement Performance The Baltic Journal of Road and Bridge Engineering asphalt dynamic modulus pavement design pavement performance predictive model master curve mul¬tilayer-elastic theory. |
title | Influence of Asphalt Visco-Elastic Properties on Flexible Pavement Performance |
title_full | Influence of Asphalt Visco-Elastic Properties on Flexible Pavement Performance |
title_fullStr | Influence of Asphalt Visco-Elastic Properties on Flexible Pavement Performance |
title_full_unstemmed | Influence of Asphalt Visco-Elastic Properties on Flexible Pavement Performance |
title_short | Influence of Asphalt Visco-Elastic Properties on Flexible Pavement Performance |
title_sort | influence of asphalt visco elastic properties on flexible pavement performance |
topic | asphalt dynamic modulus pavement design pavement performance predictive model master curve mul¬tilayer-elastic theory. |
url | https://bjrbe-journals.rtu.lv/article/view/3408 |
work_keys_str_mv | AT ritakleiziene influenceofasphaltviscoelasticpropertiesonflexiblepavementperformance AT audriusvaitkus influenceofasphaltviscoelasticpropertiesonflexiblepavementperformance AT donatascygas influenceofasphaltviscoelasticpropertiesonflexiblepavementperformance |