Advances in Renewable Asphalt Pavement Materials

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: 31 August 2024 | Viewed by 2276

Special Issue Editors


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Guest Editor
School of Highway, Chang’an University, Xi’an 710064, China
Interests: bitumen aging and reclamation of recycled bitumen pavement; in-situ tests or nondestructive tests (NDT) for asphalt mixtures

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Guest Editor
Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China
Interests: mechanical and physical properties of asphalt pavement (mixture) via multi-scale tests and simulations; nondestructive test (NDT) for the pavement infrastructure; long-term performance of pavement (LTPP)

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Guest Editor
Associate Professor, School of Qilu Transportation, Shandong University, Jinan 250100, China
Interests: the design and characterization of high-performance pavement material; the itilization of solid waste; road engineering intelligent maintenance; the intelligent detection of traffic infrastructure
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Special Issue Information

Dear Colleagues,

Asphalt pavements constitute one of the most common infrastructures across the world. Globally, pavement construction and maintenance consume a remarkable amount of asphalt mixtures. At present, asphalt mixture productions are progressively moving towards "green" and more sustainable solutions, aiming to minimize environmental impact and energy consumption. As a result, renewable asphalt pavement materials have gained the increasing attention of pavement researchers and engineers.

Several technologies have been used in the pavement industry to produce renewable materials. One common practice is to recycle the reclaimed asphalt pavements (RAPs) in producing materials in order to preserve new aggregate, filler, and asphalt binder. In addition to RAPs, wasted tire rubber and wasted plastic have also been used to form the pavement materials, resulting in a green and sustainable recycling process. Another frequently used technique is to use the renewable bio-binder in pavement materials to replace the non-renewable asphalt bitumen. Applications of the above technologies help to maximize the use of recycled materials, industrial by-products, and wastes in pavement materials and generate a more renewable asphalt pavement.

This Special Issue of "Advances in renewable asphalt pavement materials" covers general topics on renewable asphalt pavement material design and production based on waste material recycling and renewable material additive. This Special Issue will publish full research papers and reviews. Areas to be covered in this research topic may include, but are not limited to, the following:

  • Advances in renewable pavement materials produced with RAPs;
  • The application of bio-binder in pavement materials to replace asphalt bitumen;
  • Recycling tire rubber in pavement materials;
  • Recycling waste plastic in pavement materials;
  • Pavement construction technology with renewable materials;
  • Life cycle assessment on renewable pavement materials.

Dr. Chengwei Xing
Dr. Huailei Cheng
Dr. Jizhe Zhang
Guest Editors

Manuscript Submission Information

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Keywords

  • asphalt pavement
  • renewable material
  • recycling
  • RAP
  • tire rubber
  • waste plastic
  • bio-material

Published Papers (3 papers)

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Research

23 pages, 7706 KiB  
Article
Phase Separation Study on the Storage of Technically Specification Natural Rubber Modified Bitumen
by Bahruddin Ibrahim, Arya Wiranata, Ida Zahrina, Leo Sentosa, Nasruddin Nasruddin and Yuswan Muharam
Appl. Sci. 2024, 14(8), 3179; https://doi.org/10.3390/app14083179 - 10 Apr 2024
Viewed by 330
Abstract
Overloading and climate change are often problems in pavement structures. For this reason, hard asphalt binders have high softening points, are elastic, and have good adhesion, which is needed to improve pavement performance. Asphalt binder performance can be enhanced by adding additives such [...] Read more.
Overloading and climate change are often problems in pavement structures. For this reason, hard asphalt binders have high softening points, are elastic, and have good adhesion, which is needed to improve pavement performance. Asphalt binder performance can be enhanced by adding additives such as natural rubber or natural-rubber-modified asphalt. However, natural-rubber-modified asphalt shows poor storage stability problems. This is due to differences in density and viscosity between the constituent components of natural-rubber-modified asphalt. This study examines the phase separation mechanism in technically specified natural rubber (TSNR) modified asphalt. Prediction of the optimum storage length of modified asphalt before phase separation occurs, using a combined incompressible Navier–Stokes and phase field model and carried out with COMSOL Multiphysics software version 5.5. Experimental validation was conducted at TSNR levels of 8, 10, and 12% at 160 °C for 48 h, with and without sulfur. The simulation showed that the asphalt modified with TSNR experienced phase separation after 12 h of storage at 160 °C under conditions without stirring. This aligns with the experimental results, which showed phase separation at 160 °C after 48 h. Adding sulfur additives did not have much effect on improving storage stability. The combined incompressible Navier–Stokes and phase field model accurately describes the phase separation in TSNR-modified asphalt. The results of this research recommend that the industry store natural-rubber-modified asphalt in a constantly stirred condition to prevent phase separation of modified asphalt. In addition, the results of this research help the industry predict or increase the homogeneity of polymer-modified asphalt production and save time and costs. Full article
(This article belongs to the Special Issue Advances in Renewable Asphalt Pavement Materials)
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15 pages, 1529 KiB  
Article
Performance Assessment of Waste Cooking Oil-Modified Asphalt Mixtures
by Hamza Alkuime, Emad Kassem, Khaled A. Alshraiedeh, Manaf Bustanji, Ahmad Aleih and Fawzi Abukhamseh
Appl. Sci. 2024, 14(3), 1228; https://doi.org/10.3390/app14031228 - 01 Feb 2024
Viewed by 837
Abstract
This study aims to develop a framework to incorporate Waste Cooking Oil (WCO) into asphalt mixtures. Such a framework utilizes a Balanced Mix Design (BMD) approach to ensure adequate resistance to cracking and rutting. Transportation agencies can use the proposed framework to incorporate [...] Read more.
This study aims to develop a framework to incorporate Waste Cooking Oil (WCO) into asphalt mixtures. Such a framework utilizes a Balanced Mix Design (BMD) approach to ensure adequate resistance to cracking and rutting. Transportation agencies can use the proposed framework to incorporate recycled materials such as used cooking oils and reclaimed asphalt pavements into asphalt mixtures, which promotes sustainability in asphalt pavement construction. This study evaluated the cracking and rutting performance of the control and modified asphalt mixtures with different WCO dosages (i.e., 2, 3, 4, 5, and 7% by the weight of the binder) using the Indirect Tensile Asphalt Cracking (IDEAL) and High-temperature Indirect Tensile (High-IDT) Rutting Assessment Tests, respectively. The results demonstrated that WCO improved the cracking resistance of the control balanced mixture but reduced its resistance to rutting. A statistically significant effect was observed at high WCO dosages. Furthermore, the interaction plot indicates that the overall performance of WCO-modified asphalt becomes softer and more flexible with the increase in WCO dosage. Thus, the designed balanced control mixture becomes unbalanced when using WCO oil at any dosage. This study proposed several approaches to design a more economically balanced WCO-modified balance asphalt mixture. Full article
(This article belongs to the Special Issue Advances in Renewable Asphalt Pavement Materials)
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17 pages, 2655 KiB  
Article
Detection Method of Cracks in Expressway Asphalt Pavement Based on Digital Image Processing Technology
by Hui Fang and Na He
Appl. Sci. 2023, 13(22), 12270; https://doi.org/10.3390/app132212270 - 13 Nov 2023
Cited by 1 | Viewed by 714
Abstract
Considering the limitations of the current pavement crack damage detection methods, this study proposes a method based on digital image processing technology for detecting highway asphalt pavement crack damage. Firstly, a non-subsampled contourlet transform is used to enhance the image of highway asphalt [...] Read more.
Considering the limitations of the current pavement crack damage detection methods, this study proposes a method based on digital image processing technology for detecting highway asphalt pavement crack damage. Firstly, a non-subsampled contourlet transform is used to enhance the image of highway asphalt pavement. Secondly, the non-crack regions in the image are screened, and the crack extraction is completed by obtaining and enhancing the crack intensity map. Finally, the features of cracks are extracted and input into the support vector machine for classification and recognition to complete the detection of cracks in highway asphalt pavement. The experimental results show that the proposed method can effectively enhance the quality of a pavement image and precisely extract a crack area from the image with a high level of damage detection accuracy. Full article
(This article belongs to the Special Issue Advances in Renewable Asphalt Pavement Materials)
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