Evaluation of Effect of Thermoplastic Polyurethane (TPU) on Crumb Rubber Modified (CRM) Asphalt Binder
Crumb rubber binder with thermoplastic polyurethane (TPU) has been experimented with to characterize the performance properties considering the workability, rutting, fatigue cracking and cracking resistance at low temperatures depending on the temperatures and aging states. Physical and rheological...
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description | Crumb rubber binder with thermoplastic polyurethane (TPU) has been experimented with to characterize the performance properties considering the workability, rutting, fatigue cracking and cracking resistance at low temperatures depending on the temperatures and aging states. Physical and rheological properties were evaluated to proceed with the study by applying Superpave asphalt binder testing and multi-stress creep recovery (MSCR). Based on the targeted experiments, the binder samples were produced at three aging states (original, short-term aged and long-term aged) using a rolling thin film oven (RTFO) and pressure aging vessel (PAV). The results revealed that (i) the addition of TPU into CRM binders has a potential effect on increasing viscoelasticity at the original condition, (ii) CRM binders containing TPU showed improved anti-aging performance based on results of RTFO residues and (iii) the inclusion of TPU made it possible for CRM asphalt binder to improve its fatigue and cracking resistance at low temperature. |
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Physical and rheological properties were evaluated to proceed with the study by applying Superpave asphalt binder testing and multi-stress creep recovery (MSCR). Based on the targeted experiments, the binder samples were produced at three aging states (original, short-term aged and long-term aged) using a rolling thin film oven (RTFO) and pressure aging vessel (PAV). The results revealed that (i) the addition of TPU into CRM binders has a potential effect on increasing viscoelasticity at the original condition, (ii) CRM binders containing TPU showed improved anti-aging performance based on results of RTFO residues and (iii) the inclusion of TPU made it possible for CRM asphalt binder to improve its fatigue and cracking resistance at low temperature.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma15113824</identifier><identifier>PMID: 35683122</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Aging ; Asphalt pavements ; Binders (materials) ; Crack propagation ; Creep recovery ; Fatigue cracking ; Fatigue failure ; Fracture mechanics ; Low temperature ; Low temperature resistance ; Oxidation ; Polyurethane resins ; Rheological properties ; Rubber ; Shear strain ; Statistical analysis ; Temperature ; Test methods ; Thin films ; Urethane thermoplastic elastomers ; Variance analysis ; Viscoelasticity ; Viscosity ; Workability</subject><ispartof>Materials, 2022-05, Vol.15 (11), p.3824</ispartof><rights>2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). 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Physical and rheological properties were evaluated to proceed with the study by applying Superpave asphalt binder testing and multi-stress creep recovery (MSCR). Based on the targeted experiments, the binder samples were produced at three aging states (original, short-term aged and long-term aged) using a rolling thin film oven (RTFO) and pressure aging vessel (PAV). 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subjects | Aging Asphalt pavements Binders (materials) Crack propagation Creep recovery Fatigue cracking Fatigue failure Fracture mechanics Low temperature Low temperature resistance Oxidation Polyurethane resins Rheological properties Rubber Shear strain Statistical analysis Temperature Test methods Thin films Urethane thermoplastic elastomers Variance analysis Viscoelasticity Viscosity Workability |
title | Evaluation of Effect of Thermoplastic Polyurethane (TPU) on Crumb Rubber Modified (CRM) Asphalt Binder |
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