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Review: shear properties and various mechanical tests in the interface zone of asphalt layers

Over four decades, researchers have extensively focused on bonding flexible pavement layers. Scholars have concentrated on the partial or complete lack of interlayer bonding between asphalt layers, which is the primary cause of premature pavement failures, such as cracking, rutting, slippage of wear...

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Main Authors: M. Akraym, Hatim, Muniandy, Ratnasamy, Mohd Jakarni, Fauzan, Hassim, Salihudin
Format: Article
Published: Multidisciplinary Digital Publishing Institute 2023
Online Access:http://psasir.upm.edu.my/id/eprint/109293/
https://www.mdpi.com/2412-3811/8/3/48
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spelling my.upm.eprints.1092932024-08-16T07:17:32Z http://psasir.upm.edu.my/id/eprint/109293/ Review: shear properties and various mechanical tests in the interface zone of asphalt layers M. Akraym, Hatim Muniandy, Ratnasamy Mohd Jakarni, Fauzan Hassim, Salihudin Over four decades, researchers have extensively focused on bonding flexible pavement layers. Scholars have concentrated on the partial or complete lack of interlayer bonding between asphalt layers, which is the primary cause of premature pavement failures, such as cracking, rutting, slippage of wearing courses, and decline in pavement life. These defects are observed within the high horizontal force areas owing to increased speed, braking, and sharp angles when entering or exiting highways and the variations in paving materials, traffic load, and climatic factors. Various studies have investigated the debonding of flexible pavements, and test methods have been developed to find effective solutions. This review is aimed at summarising and discussing certain factors influencing shear strength performance, such as tack coat material, surface characteristics of multi-layer construction of flexible pavements, and different mechanical shear tests. First, bonding in the interface zone area and its Effect on the shear strength performance is reviewed. Subsequently, the types of materials and construction methods and their effects on the bonding quality of the interface zone area are clarified. Finally, the linear relationships between certain effects and the Ability of nanofibers to improve the emulsion properties are discussed. However, no agreement on the optimum tack coat could be obtained owing to the variety of surfaces. Hence, a milling surface is recommended for higher shear strength. The shear test is the most used method for verifying the interlayer bonding strengths, and continuous research endeavours are recommended to analyse debonding in multi-layer asphalt pavements. Multidisciplinary Digital Publishing Institute 2023-03-08 Article PeerReviewed M. Akraym, Hatim and Muniandy, Ratnasamy and Mohd Jakarni, Fauzan and Hassim, Salihudin (2023) Review: shear properties and various mechanical tests in the interface zone of asphalt layers. Infrastructures, 8 (3). art. no. 48. pp. 1-24. ISSN 2412-3811 https://www.mdpi.com/2412-3811/8/3/48 10.3390/infrastructures8030048
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description Over four decades, researchers have extensively focused on bonding flexible pavement layers. Scholars have concentrated on the partial or complete lack of interlayer bonding between asphalt layers, which is the primary cause of premature pavement failures, such as cracking, rutting, slippage of wearing courses, and decline in pavement life. These defects are observed within the high horizontal force areas owing to increased speed, braking, and sharp angles when entering or exiting highways and the variations in paving materials, traffic load, and climatic factors. Various studies have investigated the debonding of flexible pavements, and test methods have been developed to find effective solutions. This review is aimed at summarising and discussing certain factors influencing shear strength performance, such as tack coat material, surface characteristics of multi-layer construction of flexible pavements, and different mechanical shear tests. First, bonding in the interface zone area and its Effect on the shear strength performance is reviewed. Subsequently, the types of materials and construction methods and their effects on the bonding quality of the interface zone area are clarified. Finally, the linear relationships between certain effects and the Ability of nanofibers to improve the emulsion properties are discussed. However, no agreement on the optimum tack coat could be obtained owing to the variety of surfaces. Hence, a milling surface is recommended for higher shear strength. The shear test is the most used method for verifying the interlayer bonding strengths, and continuous research endeavours are recommended to analyse debonding in multi-layer asphalt pavements.
format Article
author M. Akraym, Hatim
Muniandy, Ratnasamy
Mohd Jakarni, Fauzan
Hassim, Salihudin
spellingShingle M. Akraym, Hatim
Muniandy, Ratnasamy
Mohd Jakarni, Fauzan
Hassim, Salihudin
Review: shear properties and various mechanical tests in the interface zone of asphalt layers
author_facet M. Akraym, Hatim
Muniandy, Ratnasamy
Mohd Jakarni, Fauzan
Hassim, Salihudin
author_sort M. Akraym, Hatim
title Review: shear properties and various mechanical tests in the interface zone of asphalt layers
title_short Review: shear properties and various mechanical tests in the interface zone of asphalt layers
title_full Review: shear properties and various mechanical tests in the interface zone of asphalt layers
title_fullStr Review: shear properties and various mechanical tests in the interface zone of asphalt layers
title_full_unstemmed Review: shear properties and various mechanical tests in the interface zone of asphalt layers
title_sort review: shear properties and various mechanical tests in the interface zone of asphalt layers
publisher Multidisciplinary Digital Publishing Institute
publishDate 2023
url http://psasir.upm.edu.my/id/eprint/109293/
https://www.mdpi.com/2412-3811/8/3/48
_version_ 1809142984839528448
score 13.211869

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