Journal of Road Engineering最新文献

{"title":"Determination and prediction of pavement skid resistance–connecting research and practice","authors":"T. Fwa","doi":"10.1016/j.jreng.2021.12.001","DOIUrl":"https://doi.org/10.1016/j.jreng.2021.12.001","url":null,"abstract":"","PeriodicalId":100830,"journal":{"name":"Journal of Road Engineering","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74456054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review of the development and uses of hard grade asphalts in France","authors":"Jean-François Corté","doi":"10.1016/j.jreng.2021.11.001","DOIUrl":"10.1016/j.jreng.2021.11.001","url":null,"abstract":"<div><p>Hard grade paving asphalts, i.e., having a penetration at 25 ​°C lower than 25 ​mm/10, have experienced, in France, a significant development over the last forty years, linked to the development of high modulus asphalt concrete for rehabilitation then for new construction of road pavements. In the first part, this paper provides a review of the evolution of asphalts in France over the past sixty years towards the use of harder penetration grades and a limitation of the evolution of the asphalt in the mixing plant to avoid early cracking of the pavement. Current recommendations in relation to climatic conditions are mentioned. Rheological characteristics of different hard asphalts produced in France are presented including data on the effect of ageing tests rolling thin film oven test (RTFOT) and pressure ageing vessel (PAV). Hardening of hard asphalt after RTFOT+PAV is comparable to that of softer asphalts. The performance related to low temperature cracking is less which limits the use of plain hard asphalt in pavements subjected to severe winter conditions and requires polymer modification. The specifications for hard grade paving asphalts based on traditional empirical tests included in the European standard developed in the mid 2000s and the choices made in France are presented. A comparison of the specifications for hard grade paving asphalts in the European standards and of those proposed for China shows that the European specifications are more stringent as regards consistency and evolution after ageing tests.</p></div>","PeriodicalId":100830,"journal":{"name":"Journal of Road Engineering","volume":"1 ","pages":"Pages 73-79"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2097049821000019/pdfft?md5=ba5c7c9cb6e88df8feca5fddd3092915&pid=1-s2.0-S2097049821000019-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75454764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances and development trends in eco-friendly pavements","authors":"Aimin Sha ,&nbsp;Zhuangzhuang Liu ,&nbsp;Wei Jiang ,&nbsp;Lin Qi ,&nbsp;Liqun Hu ,&nbsp;Wenxiu Jiao ,&nbsp;Diego Maria Barbieri","doi":"10.1016/j.jreng.2021.12.002","DOIUrl":"10.1016/j.jreng.2021.12.002","url":null,"abstract":"<div><p>The major contemporary in road pavement engineering is related to the creation of green and sustainable infrastructures, e.g., reduction of environmental impacts, increase in traffic safety, and transportation efficiency, etc. This review presents the recent trends in research and the technical solutions developed so far to address these challenges. After the analysis of research status in the past decades, a novel technology system of eco-friendly pavements is proposed considering two solutions, materials modification and structure improvement. The construction of an eco-friendly pavement can be achieved thanks to several different technologies ensuring permeable, noise-reducing, self-luminous, and exhaust-decomposing properties as well as apporting lower heat absorbing and enhanced anti-/de-icing characteristics. A systematic review of these technologies is presented pivoting on four main aspects: technical principle, material and structural composition, performance evaluation, and engineering application. The current trend in road engineering is combining the pavement infrastructure with various eco-friendly functions, e.g., water permeability, noise reduction, low heat absorption, exhaust gas decomposition, and anti-/de-icing. Finally, the review lists the drawbacks of the existing technologies, including high cost, single function, etc., and depicts the future developing direction and architecture of the next generation of eco-friendly pavements in which the road infrastructure should have more environmentally friendly functions than the existing technology.</p></div>","PeriodicalId":100830,"journal":{"name":"Journal of Road Engineering","volume":"1 ","pages":"Pages 1-42"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2097049821000044/pdfft?md5=c507909da303658e28956092fd9249c4&pid=1-s2.0-S2097049821000044-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73812361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"GMA material design and construction quality control for asphalt pavement of steel box girder: Case study of the Hong Kong–Zhuhai–Macau Bridge","authors":"Xiaoning Zhang","doi":"10.1016/j.jreng.2021.11.002","DOIUrl":"10.1016/j.jreng.2021.11.002","url":null,"abstract":"<div><p>To improve the quality of the Hong Kong–Zhuhai–Macao Bridge paving project, a new paving layer material, Guss-mastic asphalt (GMA), was proposed in this paper by combining the advantages of two types of cast asphalt mixtures: mastic asphalt (MA) and Guss asphalt (GA). Based on the characteristics of GMA, to simulate its actual production process, this study developed a small-simulated cooker mixing equipment. Moreover, the flow degree, 60 ​°C dynamic stability, and impact toughness were proposed to be used to evaluate the construction and ease, high temperature stability, and fatigue resistance of GMA cast asphalt mixtures, respectively. Moreover, the quality control standards for GMA paving materials by indoor tests, field trial mix GMA material performance tests, and accelerated loading tests were finalized. The study showed that the developed simulated cooker yielded consistent mixing results in the same working environment as the engineering cooker device. Increasing the coarse aggregate incorporation rate, coarsening the mastic epure (ME) gradation composition, and using a smaller oil to stone ratio can reduce the flowability of the GMA materials to varying degrees. The four-point bending fatigue life and impact toughness of the different GMA materials are correlated well. A mobility of &lt;20 ​s, 60 ​°C dynamic stability of 400–800 ​times/mm, 15 ​°C impact toughness of ≥400 ​N·mm, and cooker car mixing temperature control standard of 210 ​°C–230 ​°C form an appropriate control index system for the design and production of GMA cast asphalt mixtures. Simultaneously, accelerated loading tests verified the accuracy and reliability of the quality control index system that has been used in the GMA paving project of the Hong Kong–Zhuhai–Macao Bridge deck and has achieved good application results.</p></div>","PeriodicalId":100830,"journal":{"name":"Journal of Road Engineering","volume":"1 ","pages":"Pages 63-72"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2097049821000032/pdfft?md5=6a96806233c02dbf23296d68134146ad&pid=1-s2.0-S2097049821000032-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73228519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination and prediction of pavement skid resistance–connecting research and practice","authors":"T.F. Fwa","doi":"10.1016/j.jreng.2021.12.001","DOIUrl":"https://doi.org/10.1016/j.jreng.2021.12.001","url":null,"abstract":"<div><p>Adequate pavement skid resistance is a key requirement for safe road operations. Unfortunately, the measurement and prediction of the skid resistance property of an in-service road pavement, or pavement mixture specimens in the laboratory, is a highly challenging process from both theoretical and practical points of view. For more than 60 years, owing to the lack of theoretical solutions to the complex tire-fluid-pavement interaction problem, the practice of pavement skid resistance determination and prediction has essentially been derived from experimental and field observed data. The rapid development of efficient numerical computational techniques and high-power computing facilities in the last two decades made it possible for researchers to numerically solve the tire-fluid-pavement interaction problem. It enables the numerical evaluation and prediction of high-speed wet skid resistance, and the determination of the tire-pavement kinetic friction coefficient in the evaluation of low-speed skid resistance. This paper presents a state-of-the-art review of the research development of theoretical mechanistic approaches in the determination and prediction of pavement skid resistance. It covers the following main aspects of the subject matter: (i) mechanisms of skid resistance generation in dry, wetted (i.e., damp), wet and flooded pavements; (ii) theoretical evaluation of pavement skid resistance in dry, wetted, wet and flooded states; (iii) theoretical approaches in pavement skid resistance prediction; and (iv) concepts of representing the skid resistance state of pavement. The capability of finite element simulation approach for wet skid resistance evaluation with good accuracy is explained. Also highlighted is the practical significance of the Concept of Skid Resistance State. Areas of practical applications of the concept, coupled with the simulation model, are introduced. They include applications in driving safety analysis, road safety design and control, design of paving mixtures, safety maintenance and management of pavements, and harmonization of skid resistance measurements and predictions.</p></div>","PeriodicalId":100830,"journal":{"name":"Journal of Road Engineering","volume":"1 ","pages":"Pages 43-62"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2097049821000020/pdfft?md5=d8d5c4fa1c213168cb7dd94b35bcb9fa&pid=1-s2.0-S2097049821000020-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91761022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}