{"title":"Design Optimization and Rheological Property of Recyclable Epoxy Asphalt","authors":"Wenyi Zhou, Junyan Yi, Laurent Brochard, Zhongshi Pei, Sainan Xie, Decheng Feng","doi":"10.1007/s10924-025-03499-3","DOIUrl":null,"url":null,"abstract":"<div><p>Epoxy asphalt serves as a vital material in infrastructure construction; however, its inefficient regeneration process hampers broader adoption. To overcome this challenge, the concept of recyclable epoxy asphalt, harnessing the reversibility of dynamic covalent bonds, has been introduced. In prior research, we successfully developed and validated recyclable epoxy asphalt incorporating Diels–Alder reaction bonds. This study focuses on enhancing performance through design optimization and rheological property assessment of recyclable epoxy asphalt. By employing response surface methodology, 13 distinct compositions varying two parameters and evaluating three mechanical properties were devised to determine the optimal material formulation for recyclable epoxy asphalt. Subsequently, the recyclable epoxy asphalt underwent controlled aging and regeneration processes. Finally, the study evaluated the chemical composition and rheological properties of recyclable epoxy asphalt before and after regeneration. The optimization procedure identified the ideal composition of recyclable epoxy asphalt as 54% asphalt, 15% epoxy monomer, and 31% curing agent. The durability of the Diels–Alder reaction bonds’ reversibility under prolonged use is pivotal to the regeneration process. Rheological analysis suggests that moderate use enhances the performance of recyclable epoxy asphalt, with partial recovery achievable through the regeneration process. The preparation-aging-regeneration cycle underscores the practicality of recyclable epoxy asphalt, offering substantial environmental benefits and promising future applications.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 3","pages":"1651 - 1665"},"PeriodicalIF":4.7000,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Polymers and the Environment","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10924-025-03499-3","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
引用次数: 0
Abstract
Epoxy asphalt serves as a vital material in infrastructure construction; however, its inefficient regeneration process hampers broader adoption. To overcome this challenge, the concept of recyclable epoxy asphalt, harnessing the reversibility of dynamic covalent bonds, has been introduced. In prior research, we successfully developed and validated recyclable epoxy asphalt incorporating Diels–Alder reaction bonds. This study focuses on enhancing performance through design optimization and rheological property assessment of recyclable epoxy asphalt. By employing response surface methodology, 13 distinct compositions varying two parameters and evaluating three mechanical properties were devised to determine the optimal material formulation for recyclable epoxy asphalt. Subsequently, the recyclable epoxy asphalt underwent controlled aging and regeneration processes. Finally, the study evaluated the chemical composition and rheological properties of recyclable epoxy asphalt before and after regeneration. The optimization procedure identified the ideal composition of recyclable epoxy asphalt as 54% asphalt, 15% epoxy monomer, and 31% curing agent. The durability of the Diels–Alder reaction bonds’ reversibility under prolonged use is pivotal to the regeneration process. Rheological analysis suggests that moderate use enhances the performance of recyclable epoxy asphalt, with partial recovery achievable through the regeneration process. The preparation-aging-regeneration cycle underscores the practicality of recyclable epoxy asphalt, offering substantial environmental benefits and promising future applications.
期刊介绍：
The Journal of Polymers and the Environment fills the need for an international forum in this diverse and rapidly expanding field. The journal serves a crucial role for the publication of information from a wide range of disciplines and is a central outlet for the publication of high-quality peer-reviewed original papers, review articles and short communications. The journal is intentionally interdisciplinary in regard to contributions and covers the following subjects - polymers, environmentally degradable polymers, and degradation pathways: biological, photochemical, oxidative and hydrolytic; new environmental materials: derived by chemical and biosynthetic routes; environmental blends and composites; developments in processing and reactive processing of environmental polymers; characterization of environmental materials: mechanical, physical, thermal, rheological, morphological, and others; recyclable polymers and plastics recycling environmental testing: in-laboratory simulations, outdoor exposures, and standardization of methodologies; environmental fate: end products and intermediates of biodegradation; microbiology and enzymology of polymer biodegradation; solid-waste management and public legislation specific to environmental polymers; and other related topics.
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