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Journal article
Performance and cost evaluations of 100% recycled hot asphalt mixtures for pothole patching applications in flexible pavements
Construction and Building Materials, Vol.392, 131921
2023
Web of Science ID: WOS:001033082500001
Abstract
Fixing the potholes using bituminous patching mixtures is a critical and costly pavement maintenance activity.</p><p>The patching mixture’s quality significantly affects patch durability and performance; always using the best</p><p>material available is advisable. This study investigated the feasibility of using 100% hot recycled asphalt</p><p>pavements (RAP) as a possible patching material by comparing the performance results with cold patching</p><p>mixtures (CPM) as well as Superpave hot mix asphalt (SHMA) mixtures. Four different RAP mixtures, two fine-graded and two coarse-graded, from two distinct sources, are obtained. RAP mixtures were handled in a laboratory environment to obtain the hot recycled patching materials. Three different rejuvenators were incorporated into hot-recycled pavement material (HRPM) at manufacturer-recommended dosages to determine the best rejuvenator type. Performances of the mixtures are evaluated in terms of linear viscoelastic characterization, permanent deformation, and low-temperature thermal cracking potentials using dynamic modulus, flow number, and indirect tensile strength tests, respectively. The results show that RAP mixtures with any RAP source, gradation, and rejuvenator type outperformed CPM in performance tests and behaved similarly to SHMA mixtures.
Details
- Title
- Performance and cost evaluations of 100% recycled hot asphalt mixtures for pothole patching applications in flexible pavements
- Publication Details
- Construction and Building Materials, Vol.392, 131921
- Resource Type
- Journal article
- Publisher
- Elsevier BV; Netherlands
- Format
- pdf
- Number of pages
- 12
- Copyright
- © 2023 Elsevier Ltd. All rights reserved.
- Identifiers
- WOS:001033082500001; 99380467297006600
- Academic Unit
- Hal Marcus College of Science and Engineering ; Mechanical Engineering
- Language
- English