In order to improve the reclaimed asphalt pavement (RAP) dosing and the road performance of recycled asphalt mixtures, this study prepared epoxy recycled binder (ERB) and epoxy recycled mixtures (ERMs) by dosing epoxy asphalt, respectively. The rheological characteristics and microstructure of ERB were comprehensively analyzed using a dynamic shear rheometer (DSR), a bending beam rheometer (BBR), and fluorescence microscopy (FM). The road performance of ERM was evaluated by a four-point bending test, a rutting test, trabecular beam bending test, a freeze-thaw splitting test, an immersion Marshall test, and a uniaxial compression dynamic modulus test. Grey relational analysis (GRA) was used to quantify the correlation between the dosage of epoxy system and road performance indicators. The results show that, after the addition of the epoxy system, the high- and low-temperature rheological properties of ERB were improved by 458.3% and 97.9% compared with those of ordinary asphalt, and the high-temperature performance and fatigue performance of ERM were improved by 220.4% and 80.5% compared with SBS-modified asphalt mixtures. The dynamic modulus test showed that the dynamic modulus of ERM was positively correlated with the dosage of epoxy system. GRA showed that the dosage of epoxy system was most closely related to the fatigue performance of recycled mixtures.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3390/ma18050982 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comprehensive Performance Evaluation of Epoxy Reclaimed Asphalt and Mixtures.
Materials (Basel)
February 2025
Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56126 Pisa, Italy.
In order to improve the reclaimed asphalt pavement (RAP) dosing and the road performance of recycled asphalt mixtures, this study prepared epoxy recycled binder (ERB) and epoxy recycled mixtures (ERMs) by dosing epoxy asphalt, respectively. The rheological characteristics and microstructure of ERB were comprehensively analyzed using a dynamic shear rheometer (DSR), a bending beam rheometer (BBR), and fluorescence microscopy (FM). The road performance of ERM was evaluated by a four-point bending test, a rutting test, trabecular beam bending test, a freeze-thaw splitting test, an immersion Marshall test, and a uniaxial compression dynamic modulus test.
View Article and Find Full Text PDFA Study of the Catalytic System HPWO/Quaternary Phosphonium Salts for the Epoxidation of Fatty Acid Methyl Esters-The Effect of the Molar Ratio of Hydrogen Peroxide to the Double Bond.
Molecules
February 2025
Department of Organic Chemical Technology and Polymer Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, Poland.
In the present work, the epoxidation of fatty acid methyl esters (biodiesel or FAMEs) with an iodine number of 96.4 g/100 g and containing approximately 11% palmitic acid, 4% stearic acid, 51% oleic acid, 25% linoleic acid, and 5% linolenic acid was studied with an aqueous HO solution and different quaternary phosphonium salts (QPSs) combined with the phosphotungstic heteropolyacid (HPA) HPWO in a biphasic system. The effect of the molar ratio of HO:C=C on the epoxidation of FAMEs was investigated.
View Article and Find Full Text PDFMagnetic Ionic Liquid: A Multifunctional Platform for the Design of Hybrid Graphene/Carbon Nanotube Networks as Electromagnetic Wave-Absorbing Materials.
Molecules
February 2025
Université de Lyon, CNRS, Université Claude Bernard Lyon 1, INSA Lyon, Université Jean Monnet, UMR 5223, Ingénierie des Matériaux Polymères, CEDEX F-69621 Villeurbanne, France.
Magnetic ionic liquid (MIL) based on alkyl phosphonium cation was used as a curing agent for developing epoxy nanocomposites (ENCs) modified with a graphene nanoplatelet (GNP)/carbon nanotube (CNT) hybrid filler. The materials were prepared by a solvent-free procedure involving ball-milling technology. ENCs containing as low as 3 phr of filler (GNP/CNT = 2.
View Article and Find Full Text PDFSelf-Toughened Epoxy Resin via Hybridization of Structural Isomeric Curing Agents.
Polymers (Basel)
March 2025
Department of Textile System Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
Fracture toughness is a key property of epoxy resins with a high glass transition temperature (T), used in carbon fiber/epoxy composites for aerospace applications. Conventional toughening methods rely on adding toughening agents, often compromising the processibility and thermal stability. This study introduces a simple self-toughening approach that enhances the fracture toughness without sacrificing other properties by controlling the cured epoxy network structure.
View Article and Find Full Text PDFFrontal Polymerization of Epoxy Resins: Kinetic Modeling, Rate Regulation and Curing Process Simulation for Space Manufacturing Applications.
Polymers (Basel)
March 2025
Langfang Feize Composites Technology Co., Ltd., Langfang 065000, China.
Frontal polymerization (FP) technology has attracted significant attention as an efficient, low-energy curing method for thermosetting resins. By enabling self-sustaining polymerization reactions, FP significantly reduces curing time and minimizes external energy dependence, making it ideal for in-orbit manufacturing applications. In contrast to traditional curing methods, which are limited by high energy consumption and low efficiency, FP offers a more efficient and flexible alternative.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!