Advanced Rheological Characterization of Asphalt Binders Modified with Eco-Friendly and Polymer-Based Additives Under Dynamic Loading

This study explores the rheological performance of bitumen modified with a synthetic polymer (styrene–butadiene–styrene, SBS) and two environmentally sustainable additives—animal bone ash (AB) and waste cooking oil (WCO)—to enhance durability and deformation resistance under dynamic loading. Frequen...

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Main Authors: Ali Almusawi, Shvan Tahir Nasraldeen Nasraldeen
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/15/10/5552
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author Ali Almusawi
Shvan Tahir Nasraldeen Nasraldeen
author_facet Ali Almusawi
Shvan Tahir Nasraldeen Nasraldeen
author_sort Ali Almusawi
collection DOAJ
description This study explores the rheological performance of bitumen modified with a synthetic polymer (styrene–butadiene–styrene, SBS) and two environmentally sustainable additives—animal bone ash (AB) and waste cooking oil (WCO)—to enhance durability and deformation resistance under dynamic loading. Frequency sweep and linear amplitude sweep (LAS) tests were conducted to evaluate viscoelastic and fatigue behavior. SBS at 5% showed the highest elasticity and fatigue life, making it optimal for heavily trafficked pavements. Among bio-waste additives, 6% AB provided the highest stiffness and rutting resistance in laboratory tests; however, 5% AB offered a better balance between structural integrity and cracking resistance, making it more suitable for general pavement applications. WCO-modified binders demonstrated improved flexibility, with 4% WCO achieving the best balance between elasticity and softening, ideal for low-load or temperate environments. These results highlight the potential of combining synthetic and bio-based waste materials to tailor bitumen properties for sustainable and climate-responsive pavement design.
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spelling doaj-art-8a38db2193df41a69f5798fee4a8d0d32025-08-20T03:14:38ZengMDPI AGApplied Sciences2076-34172025-05-011510555210.3390/app15105552Advanced Rheological Characterization of Asphalt Binders Modified with Eco-Friendly and Polymer-Based Additives Under Dynamic LoadingAli Almusawi0Shvan Tahir Nasraldeen Nasraldeen1Department of Civil Engineering, Faculty of Engineering, Çankaya University, Ankara 06815, TürkiyeDepartment of Civil Engineering, Faculty of Engineering, Çankaya University, Ankara 06815, TürkiyeThis study explores the rheological performance of bitumen modified with a synthetic polymer (styrene–butadiene–styrene, SBS) and two environmentally sustainable additives—animal bone ash (AB) and waste cooking oil (WCO)—to enhance durability and deformation resistance under dynamic loading. Frequency sweep and linear amplitude sweep (LAS) tests were conducted to evaluate viscoelastic and fatigue behavior. SBS at 5% showed the highest elasticity and fatigue life, making it optimal for heavily trafficked pavements. Among bio-waste additives, 6% AB provided the highest stiffness and rutting resistance in laboratory tests; however, 5% AB offered a better balance between structural integrity and cracking resistance, making it more suitable for general pavement applications. WCO-modified binders demonstrated improved flexibility, with 4% WCO achieving the best balance between elasticity and softening, ideal for low-load or temperate environments. These results highlight the potential of combining synthetic and bio-based waste materials to tailor bitumen properties for sustainable and climate-responsive pavement design.https://www.mdpi.com/2076-3417/15/10/5552rheological performancefatigue resistancebio-based additiveslinear amplitude sweepphase angle analysis
spellingShingle Ali Almusawi
Shvan Tahir Nasraldeen Nasraldeen
Advanced Rheological Characterization of Asphalt Binders Modified with Eco-Friendly and Polymer-Based Additives Under Dynamic Loading
Applied Sciences
rheological performance
fatigue resistance
bio-based additives
linear amplitude sweep
phase angle analysis
title Advanced Rheological Characterization of Asphalt Binders Modified with Eco-Friendly and Polymer-Based Additives Under Dynamic Loading
title_full Advanced Rheological Characterization of Asphalt Binders Modified with Eco-Friendly and Polymer-Based Additives Under Dynamic Loading
title_fullStr Advanced Rheological Characterization of Asphalt Binders Modified with Eco-Friendly and Polymer-Based Additives Under Dynamic Loading
title_full_unstemmed Advanced Rheological Characterization of Asphalt Binders Modified with Eco-Friendly and Polymer-Based Additives Under Dynamic Loading
title_short Advanced Rheological Characterization of Asphalt Binders Modified with Eco-Friendly and Polymer-Based Additives Under Dynamic Loading
title_sort advanced rheological characterization of asphalt binders modified with eco friendly and polymer based additives under dynamic loading
topic rheological performance
fatigue resistance
bio-based additives
linear amplitude sweep
phase angle analysis
url https://www.mdpi.com/2076-3417/15/10/5552
work_keys_str_mv AT alialmusawi advancedrheologicalcharacterizationofasphaltbindersmodifiedwithecofriendlyandpolymerbasedadditivesunderdynamicloading
AT shvantahirnasraldeennasraldeen advancedrheologicalcharacterizationofasphaltbindersmodifiedwithecofriendlyandpolymerbasedadditivesunderdynamicloading