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...

Full description

Saved in:
Bibliographic Details
Published in:Applied sciences 2019-05, Vol.9 (9), p.1727
Main Authors: Galaviz-González, José Roberto, Avalos Cueva, David, Limón Covarrubias, Pedro, Zamora Palacios, Miguel
Format: Article
Language:English
Subjects:
Aggregates
Asphalt
asphalt content
asphalt emulsion
Asphalt mixes
asphalt pavement
Asphalt pavements
Bond strength
Bonding
Concrete
Cracks
Dosage
dose
Emulsions
Energy consumption
LCB shear test
Low temperature
Mechanical properties
Researchers
Shear tests
tack coat
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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/m2 provided the same level of resistance as a 0.5 L/m2 dose; and a 55% asphalt content provided greater resistance than the 60% asphalt content.
ISSN:2076-3417
2076-3417
DOI:10.3390/app9091727