<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Since the use of additives supplies the different properties required to develop better-performing roadways, modification with additives has been used as one of the attractive alternatives when the base asphalt does not satisfy the requirements for traffic load, climate variations, and paving structure. This study evaluates the effect of additive materials of improving the ability of the surface layer to withstand permanent deformation. In addition, it discusses to what extent using waste materials as additive materials affects permanent deformation resistance and the extent of using waste materials as alternative modifiers to commercial polymers to enhance permanent deformation resistance. In this study, the simulation using the ABAQUS program under the conditions of using different percentages of the additives, changes in the thickness of the surface layer, and increasing the temperature on permanent deformation of the asphalt layer was investigated. The simulation results showed that using modified mixtures improved the Hot Mix Asphalt HMA's properties and decreased the mixtures' temperature susceptibility, which manifested as a decrease in permanent deformation (lower rutting depth) when compared to an unmodified mixture. Furthermore, using waste materials led to the greatest decrease in permanent deformation among all models.</p>
</abstract>

Since the use of additives supplies the different properties required to develop better-performing roadways, modification with additives has been used as one of the attractive alternatives when the base asphalt does not satisfy the requirements for traffic load, climate variations, and paving structure. This study evaluates the effect of additive materials of improving the ability of the surface layer to withstand permanent deformation. In addition, it discusses to what extent using waste materials as additive materials affects permanent deformation resistance and the extent of using waste materials as alternative modifiers to commercial polymers to enhance permanent deformation resistance. In this study, the simulation using the ABAQUS program under the conditions of using different percentages of the additives, changes in the thickness of the surface layer, and increasing the temperature on permanent deformation of the asphalt layer was investigated. The simulation results showed that using modified mixtures improved the Hot Mix Asphalt HMA's properties and decreased the mixtures' temperature susceptibility, which manifested as a decrease in permanent deformation (lower rutting depth) when compared to an unmodified mixture. Furthermore, using waste materials led to the greatest decrease in permanent deformation among all models.

Permanent Deformation Evaluation of Modified Asphaltic Pavement Based on Numerical Simulation Models

Civil and Environmental Engineering

This work is licensed under the Creative Commons Attribution 4.0 International License.

Since the use of additives supplies the different properties required to develop better-performing roadways, modification with additives has been used as one...

Permanent Deformation Evaluation of Modified Asphaltic Pavement Based on Numerical Simulation Models

Publié en ligne: 12 mai 2023

Pages: 178 - 189

DOI: https://doi.org/10.2478/cee-2023-0016

Mots clés
Permanent deformation, Additive, Crumb rubber (CR), Styrene-butadiene-styrene (SBS), Finite element

© 2023 Akram Alhelyani et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Permanent Deformation Evaluation of Modified Asphaltic Pavement Based on Numerical Simulation Models

Publié en ligne: 12 mai 2023

Pages: 178 - 189

DOI: https://doi.org/10.2478/cee-2023-0016

Mots clésPermanent deformation, Additive, Crumb rubber (CR), Styrene-butadiene-styrene (SBS), Finite element

© 2023 Akram Alhelyani et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mots clés
Permanent deformation, Additive, Crumb rubber (CR), Styrene-butadiene-styrene (SBS), Finite element