Investigation into a Long-Term Interlayer Bonding of Asphalt Pavements

In recent years adhesion testing of pavement layers has gained more and more importance throughout Europe. In a lot of projects the bonding properties are determined after construction and many countries have developed standard requirements which the obtained bonding values have to fulfil. The paper...

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Main Authors: Christiane Raab, Manfred Norbert Partl
Format: Article
Language:English
Published: RTU Press 2008-06-01
Series:The Baltic Journal of Road and Bridge Engineering
Subjects:
Online Access:https://bjrbe-journals.rtu.lv/article/view/2460
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author Christiane Raab
Manfred Norbert Partl
author_facet Christiane Raab
Manfred Norbert Partl
author_sort Christiane Raab
collection DOAJ
description In recent years adhesion testing of pavement layers has gained more and more importance throughout Europe. In a lot of projects the bonding properties are determined after construction and many countries have developed standard requirements which the obtained bonding values have to fulfil. The paper focuses on the question of long-term behaviour of bonding properties and presents the results of an extensive Swiss study. The study compares the bonding properties determined with the Layer Parallel Direct Shear Test (LPDS) according to Leutner of 14 high volume roads from the years 1993–97 to the values for the same road sections determined 9–13 years later. In addition, a second study conducted on a circular track investigated the differences between the bonding properties in the wheel path and outside the wheel path. It could be shown that in most cases the bond improves due to compaction and settlement caused by the traffic. Problems arise, resulting in a reduction of shear forces, when the pavement shows distress phenomena. The difference between the bonding properties in the wheel path and outside it could be demonstrated in the circular track study, whereas the differences on the road depend on many factors and often seem to be eliminated over the years.
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spelling doaj.art-2d79f66037da47dd8639b282bb21f6792022-12-21T19:22:45ZengRTU PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882008-06-0132657010.3846/1822-427X.2008.3.65-701253Investigation into a Long-Term Interlayer Bonding of Asphalt PavementsChristiane Raab0Manfred Norbert Partl1EMPA Swiss Federal Laboratories for Materials Testing and Research, CH-8600 Dübendorf, SwitzerlandEMPA Swiss Federal Laboratories for Materials Testing and Research, CH-8600 Dübendorf, SwitzerlandIn recent years adhesion testing of pavement layers has gained more and more importance throughout Europe. In a lot of projects the bonding properties are determined after construction and many countries have developed standard requirements which the obtained bonding values have to fulfil. The paper focuses on the question of long-term behaviour of bonding properties and presents the results of an extensive Swiss study. The study compares the bonding properties determined with the Layer Parallel Direct Shear Test (LPDS) according to Leutner of 14 high volume roads from the years 1993–97 to the values for the same road sections determined 9–13 years later. In addition, a second study conducted on a circular track investigated the differences between the bonding properties in the wheel path and outside the wheel path. It could be shown that in most cases the bond improves due to compaction and settlement caused by the traffic. Problems arise, resulting in a reduction of shear forces, when the pavement shows distress phenomena. The difference between the bonding properties in the wheel path and outside it could be demonstrated in the circular track study, whereas the differences on the road depend on many factors and often seem to be eliminated over the years.https://bjrbe-journals.rtu.lv/article/view/2460adhesion propertieslayer-parallel direct shear (lpds) testinterlayers
spellingShingle Christiane Raab
Manfred Norbert Partl
Investigation into a Long-Term Interlayer Bonding of Asphalt Pavements
The Baltic Journal of Road and Bridge Engineering
adhesion properties
layer-parallel direct shear (lpds) test
interlayers
title Investigation into a Long-Term Interlayer Bonding of Asphalt Pavements
title_full Investigation into a Long-Term Interlayer Bonding of Asphalt Pavements
title_fullStr Investigation into a Long-Term Interlayer Bonding of Asphalt Pavements
title_full_unstemmed Investigation into a Long-Term Interlayer Bonding of Asphalt Pavements
title_short Investigation into a Long-Term Interlayer Bonding of Asphalt Pavements
title_sort investigation into a long term interlayer bonding of asphalt pavements
topic adhesion properties
layer-parallel direct shear (lpds) test
interlayers
url https://bjrbe-journals.rtu.lv/article/view/2460
work_keys_str_mv AT christianeraab investigationintoalongterminterlayerbondingofasphaltpavements
AT manfrednorbertpartl investigationintoalongterminterlayerbondingofasphaltpavements