Bonding Evaluation of Asphalt Emulsions used as Tack Coats through Shear Testing

A poor bond between the layers constituting an asphalt pavement can cause structural problems such as slippage, delamination, and top-down cracking. These are consequences of the pavement being unable to act as a continuous element and to properly transmit the effects of the traffic to underlying la...

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Main Authors: José Roberto Galaviz-González, David Avalos Cueva, Pedro Limón Covarrubias, Miguel Zamora Palacios
Format: Article
Language:English
Published: MDPI AG 2019-04-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/9/9/1727
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author José Roberto Galaviz-González
David Avalos Cueva
Pedro Limón Covarrubias
Miguel Zamora Palacios
author_facet José Roberto Galaviz-González
David Avalos Cueva
Pedro Limón Covarrubias
Miguel Zamora Palacios
author_sort José Roberto Galaviz-González
collection DOAJ
description A poor bond between the layers constituting an asphalt pavement can cause structural problems such as slippage, delamination, and top-down cracking. These are consequences of the pavement being unable to act as a continuous element and to properly transmit the effects of the traffic to underlying layers. The aim of this research was to characterize an asphalt emulsion with low asphalt content using the Mexican standard and to evaluate its performance through the Laboratorio de Caminos de Barcelona (LCB) shear testing. Cationic slow setting (SS) and cationic rapid setting (RS) asphalt emulsions were tested by varying the asphalt contents, dosages, and cure times. The slow set emulsions presented a greater fracture energy than did the rapid set emulsions; a dose of 0.3 L/m<sup>2</sup> provided the same level of resistance as a 0.5 L/m<sup>2</sup> dose; and a 55% asphalt content provided greater resistance than the 60% asphalt content.
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spelling doaj.art-48ff30ff6fd8401f92c2bb47d3065d662022-12-21T20:19:45ZengMDPI AGApplied Sciences2076-34172019-04-0199172710.3390/app9091727app9091727Bonding Evaluation of Asphalt Emulsions used as Tack Coats through Shear TestingJosé Roberto Galaviz-González0David Avalos Cueva1Pedro Limón Covarrubias2Miguel Zamora Palacios3Department of Civil and Topography Engineering, Guadalajara University, 1421 Blvd. Marcelino García Barragán, Guadalajara C.P. 44430, MexicoDepartment of Civil and Topography Engineering, Guadalajara University, 1421 Blvd. Marcelino García Barragán, Guadalajara C.P. 44430, MexicoDepartment of Civil and Topography Engineering, Guadalajara University, 1421 Blvd. Marcelino García Barragán, Guadalajara C.P. 44430, MexicoDepartment of Civil and Topography Engineering, Guadalajara University, 1421 Blvd. Marcelino García Barragán, Guadalajara C.P. 44430, MexicoA poor bond between the layers constituting an asphalt pavement can cause structural problems such as slippage, delamination, and top-down cracking. These are consequences of the pavement being unable to act as a continuous element and to properly transmit the effects of the traffic to underlying layers. The aim of this research was to characterize an asphalt emulsion with low asphalt content using the Mexican standard and to evaluate its performance through the Laboratorio de Caminos de Barcelona (LCB) shear testing. Cationic slow setting (SS) and cationic rapid setting (RS) asphalt emulsions were tested by varying the asphalt contents, dosages, and cure times. The slow set emulsions presented a greater fracture energy than did the rapid set emulsions; a dose of 0.3 L/m<sup>2</sup> provided the same level of resistance as a 0.5 L/m<sup>2</sup> dose; and a 55% asphalt content provided greater resistance than the 60% asphalt content.https://www.mdpi.com/2076-3417/9/9/1727asphalt emulsiontack coatbondingasphalt pavementLCB shear testdoseasphalt content
spellingShingle José Roberto Galaviz-González
David Avalos Cueva
Pedro Limón Covarrubias
Miguel Zamora Palacios
Bonding Evaluation of Asphalt Emulsions used as Tack Coats through Shear Testing
Applied Sciences
asphalt emulsion
tack coat
bonding
asphalt pavement
LCB shear test
dose
asphalt content
title Bonding Evaluation of Asphalt Emulsions used as Tack Coats through Shear Testing
title_full Bonding Evaluation of Asphalt Emulsions used as Tack Coats through Shear Testing
title_fullStr Bonding Evaluation of Asphalt Emulsions used as Tack Coats through Shear Testing
title_full_unstemmed Bonding Evaluation of Asphalt Emulsions used as Tack Coats through Shear Testing
title_short Bonding Evaluation of Asphalt Emulsions used as Tack Coats through Shear Testing
title_sort bonding evaluation of asphalt emulsions used as tack coats through shear testing
topic asphalt emulsion
tack coat
bonding
asphalt pavement
LCB shear test
dose
asphalt content
url https://www.mdpi.com/2076-3417/9/9/1727
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AT pedrolimoncovarrubias bondingevaluationofasphaltemulsionsusedastackcoatsthroughsheartesting
AT miguelzamorapalacios bondingevaluationofasphaltemulsionsusedastackcoatsthroughsheartesting