The Experts below are selected from a list of 8160 Experts worldwide ranked by ideXlab platform
Feipeng Xiao - One of the best experts on this subject based on the ideXlab platform.
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performance environmental impact and cost analysis of marking materials in Pavement Engineering the state of art
Journal of Cleaner Production, 2021Co-Authors: Zixuan Chen, Feipeng XiaoAbstract:Abstract As a necessary component of traffic signal and the safety features on traffic system, Pavement markings could not be replaced by other means currently. With the enhancement of environmental and healthy requirements, it was also crucial to reduce energy consumption and negative environmental impact of marking materials. This review synthesized the state-of-the-art technologies and applications of marking materials in Pavement Engineering in terms of environmental impact and cost evaluation. Firstly, the common raw materials of Pavement markings were introduced, including glass beads, binder, pigment, filler and dispersion medium. Afterwards, this article comprehensively classified marking materials, involved thermoplastic markings, paint materials, cold-plastic markings, two component markings and marking tapes. Especially, the application of waterborne paints was highlighted, which had presented potential advantage on environmental protection, cost saving and heath issue. In addition, the performance requirements of marking materials were discussed, focusing on the retro-reflectivity and durability. For the uniformity of traffic marking system, the necessary of developing specifications and Pavement marking management system were emphasized. Subsequently, life cycle assessment analysis on Pavement marking materials was considered based on the cost and environmental impacts, typically involved the volatile organic compounds, heavy metal and glass beads. Finally, advanced marking materials and innovative applications were described and investigated, including photo-luminescent coating, nanocomposite paints and translucent concrete-based smart lane separator. Moreover, prospects and conclusions were summarized to present the avenues and opportunities for future researches. The Pavement marking industry would continue to concentrate on safety, performance and environment aspects while taking the advantage of the technological advancements in future.
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Recent applications of waste solid materials in Pavement Engineering.
Waste management (New York N.Y.), 2020Co-Authors: Zifeng Zhao, Feipeng Xiao, Serji N. AmirkhanianAbstract:Abstract Solid waste materials refer to those municipal or industrial or even domestic wastes that are massively produced during manufacture as well as daily life. A wide variety of solid wastes are generated, but only a few of them are employed in Pavement structures. To achieve the task, papers between 2014 and 2019 from top journals which address waste management, waste characterization, and economic and environmental assessment were collected at first. Then, the scope of solid waste materials was narrowed down based on their applications, In the end, six most popular solid waste materials were selected for further study and for the review, namely recycled concrete aggregates, reclaimed asphalt Pavement, fly ash, bottom ash, waste rubber, and waste plastics. The reason why only these six solid waste materials are selected is that the rest are neither massively produced not can they be directly used in Pavement structures. This review article contains structural properties, treatments, novel researches, environmental analysis, and economic analysis of each solid waste material. The objective of this review article is to provide future researchers with the latest research findings, limitations and improvements in this subject. In conclusion, quite a few novel researchers in terms of workmanship, construction methodology, and treatments are collected for all six materials. Furthermore, an increasing number of findings have proven that most solid waste materials have both environmental and economic benefits when applied in field. Future researchers are encouraged to implement researches on solid waste materials in Pavement Engineering with consideration of both material properties and environmental/economic effects.
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Applications of epoxy materials in Pavement Engineering
Construction and Building Materials, 2020Co-Authors: Qian Xiang, Feipeng XiaoAbstract:Abstract Epoxy materials in the Pavement behave well in thermal stability, mechanical properties, adhesive properties, corrosion and chemical resistance, due to unique three-dimensional crosslinking network structure and special functional groups. This review presents a summary mainly about the chemistry of epoxy resins, the curing mechanism and properties of epoxy materials covering epoxy asphalt, epoxy emulsified asphalt and epoxy concrete. Thereinto, the opening-ring mechanism, the polymerization mechanism and the formation of network provide scientific guidance for the actual composite process of epoxy materials. The addition of epoxy resins can enhance the high-temperature stability and mechanical properties of epoxy asphalt, epoxy emulsified asphalt and their mixtures, because the crosslinking network of epoxy resin restricts the movement of asphalt. Additionally, it is pointed out that epoxy concrete has excellent chemical resistance and high bond strength. Moreover, the curing of epoxy resin without curing agents can be catalyzed in the presence of cement, which gives a way to achieve self-healing of concrete. Hence, epoxy materials in the Pavement can be a suitable alternative towards the high-temperature stability, excellent bonding adhesion and mechanical performance of Pavement materials.
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application of tack coat in Pavement Engineering
Construction and Building Materials, 2017Co-Authors: Jiayu Wang, Feipeng Xiao, Zheng Chen, Serji N. AmirkhanianAbstract:Abstract The interlayer bonding between Pavement layers has significant effects on the Pavement performance responses during the traffic loading. The insufficient bond adhesion may increase the transferred stresses and extended strains in the relevant layers when applied to traffic. Over the last 30 years, many research studies focused on these related fields and found some useful conclusions to help conduct field practices of tack coat materials. In this review, it was found that the shear mode tests were the most common methods to verify bond strength and some non-destructive tests were becoming more and more useful to investigate tack coat properties. In addition, some test parameters including shear strength, cracking resistance and fatigue performance were used to assess tack coat properties. The intrinsic factors such as tack coat type, application rate, curing time and the application conditions including temperature, moisture, and surface texture together influenced the characteristics of interlayer bonding. However, Pavement failure mechanisms and the interactions between influence factors are needed to be investigated in the future.
Serji N. Amirkhanian - One of the best experts on this subject based on the ideXlab platform.
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Recent applications of waste solid materials in Pavement Engineering.
Waste management (New York N.Y.), 2020Co-Authors: Zifeng Zhao, Feipeng Xiao, Serji N. AmirkhanianAbstract:Abstract Solid waste materials refer to those municipal or industrial or even domestic wastes that are massively produced during manufacture as well as daily life. A wide variety of solid wastes are generated, but only a few of them are employed in Pavement structures. To achieve the task, papers between 2014 and 2019 from top journals which address waste management, waste characterization, and economic and environmental assessment were collected at first. Then, the scope of solid waste materials was narrowed down based on their applications, In the end, six most popular solid waste materials were selected for further study and for the review, namely recycled concrete aggregates, reclaimed asphalt Pavement, fly ash, bottom ash, waste rubber, and waste plastics. The reason why only these six solid waste materials are selected is that the rest are neither massively produced not can they be directly used in Pavement structures. This review article contains structural properties, treatments, novel researches, environmental analysis, and economic analysis of each solid waste material. The objective of this review article is to provide future researchers with the latest research findings, limitations and improvements in this subject. In conclusion, quite a few novel researchers in terms of workmanship, construction methodology, and treatments are collected for all six materials. Furthermore, an increasing number of findings have proven that most solid waste materials have both environmental and economic benefits when applied in field. Future researchers are encouraged to implement researches on solid waste materials in Pavement Engineering with consideration of both material properties and environmental/economic effects.
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application of tack coat in Pavement Engineering
Construction and Building Materials, 2017Co-Authors: Jiayu Wang, Feipeng Xiao, Zheng Chen, Serji N. AmirkhanianAbstract:Abstract The interlayer bonding between Pavement layers has significant effects on the Pavement performance responses during the traffic loading. The insufficient bond adhesion may increase the transferred stresses and extended strains in the relevant layers when applied to traffic. Over the last 30 years, many research studies focused on these related fields and found some useful conclusions to help conduct field practices of tack coat materials. In this review, it was found that the shear mode tests were the most common methods to verify bond strength and some non-destructive tests were becoming more and more useful to investigate tack coat properties. In addition, some test parameters including shear strength, cracking resistance and fatigue performance were used to assess tack coat properties. The intrinsic factors such as tack coat type, application rate, curing time and the application conditions including temperature, moisture, and surface texture together influenced the characteristics of interlayer bonding. However, Pavement failure mechanisms and the interactions between influence factors are needed to be investigated in the future.
Ralph Haas - One of the best experts on this subject based on the ideXlab platform.
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incorporating road safety into Pavement management
Transportation Research Record, 2000Co-Authors: Susan L Tighe, Ningyuan Li, Lynne Cowe Falls, Ralph HaasAbstract:Improving road safety through proper Pavement Engineering and maintenance should be one of the major objectives of Pavement management systems. When Pavements are evaluated in terms of safety, a number of factors related to Pavement Engineering properties are raised, such as Pavement geometric design, paving materials and mix design, Pavement surface properties, shoulder type, and Pavement color and visibility. Each year there are voluminous annual reports on traffic accident statistics and discussions of such road safety issues as road safety modeling and Pavement safety measurements and criteria. Although road safety may be considered a separate area, it should be incorporated into Pavement management systems. The main Pavement Engineering relationships associated with road safety are identified, and the various aspects of road safety related to Pavement management, such as Pavement types, Pavement surface macrotexture and microtexture, and Pavement safety measurements, criteria, and evaluation methods, are discussed. A systematic approach is proposed for the coordination of Pavement maintenance programs with road safety improvement and the incorporation or integration of safety management with Pavement and other management systems. Finally, a list of possible remedial measures for road safety improvements associated with Pavement maintenance activities is recommended.
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INCORPORATING SAFETY INTO ASPHALT PavementS ASSET MANAGEMENT
2000Co-Authors: Ralph Haas, S TigheAbstract:Improving road safety through proper Pavement Engineering and maintenance should be one of the major objectives of Pavement road asset management. When Pavements are evaluated in terms of safety, a number of factors related to Pavement Engineering properties are important, such as Pavement geometrics, paving materials and mix design, Pavement surface properties, shoulder type, Pavement color and visibility. Each year there are voluminous annual reports and discussions on road safety issues, such as a traffic accident statistics summary, road safety modeling, Pavement safety measurements and criteria, etc. While road safety may be considered as a separate entity, it should be incorporated into asset management systems. This paper first identifies the main Pavement Engineering relationships associated with road safety. It then discusses the various aspects of road safety factors related to asset management, such as Pavement types, Pavement surface macrotexture and microtexture, Pavement safety measurements, criteria and evaluation methods. A systematic approach is proposed to coordinating Pavement maintenance programs with road safety improvement, and incorporating or integrating safety management with Pavement and other management systems. Finally, the paper recommends a list of possible remedial measures of road safety improvements associated with Pavement maintenance activities. (a) For the covering entry of this conference, please see ITRD abstract no. E202467.
Dong Zhang - One of the best experts on this subject based on the ideXlab platform.
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Enhanced ice and snow melting efficiency of steel slag based ultra-thin friction courses with steel fiber
Journal of Cleaner Production, 2019Co-Authors: Jiuming Wan, Yue Xiao, Mingjing Fang, Wei Song, Pan Pan, Dong ZhangAbstract:Abstract Implementing melting function on Pavement without reconstruction lead to cleaner Pavement Engineering. This study proposed the reusing of steel slag to design ultra-thin friction courses for Pavement maintenance with ice and snow melting functions. Reusing the steel slag in the proposed ultra-thin friction courses could help to ease environment degradation. Volumetric performance and moisture damage resistance were tested. Corresponding induced temperature increment and effective induction heating depth were measured to characterize the effect of steel slag. Ice and snow melting efficiency was evaluated based on the melting of simulated ice layer and natural accumulated snow. Results indicated that steel slag can enhance the induction heating property of Pavement friction courses. Steel slag based mixture showed adequate volumetric and durable performance in comparison with mixtures that have no steel slag. The ice and snow melting efficiency of Pavement friction courses could also be enhanced through addition of steel slag. This proposal would enhance cleaner production and sustainability in Pavement Engineering.
Susan L Tighe - One of the best experts on this subject based on the ideXlab platform.
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Demonstrating How Sustainability Can Effectively Be Incorporated into Pavement Engineering and Management
Airfield and Highway Pavement 2013, 2013Co-Authors: Susan L Tighe, Douglas D. GransbergAbstract:Currently, public agencies in the United States and Canada are investigating the feasibility of incorporating sustainability into Pavement Engineering. The potential benefits are diverse and of strategic importance as they encompass improvements to virgin material usage, alternative material usage, Pavement in-service monitoring and management, noise, air quality, water quality, and energy usage. The paper provides summary results of eight case studies from United States and Canadian provincial departments of transportation. The case studies highlight practices in Arizona, Oregon, Washington, Ontario, and New York. The paper highlights how these agencies are implementing sustainability programs that involve various aspects of Pavement Engineering and management. The highlighted case studies focus on sustainability and how it relates to Pavement design and construction, and they provide an excellent basis for future application to Pavement preservation and maintenance treatment. The presented case studies demonstrate proactive promotion of environmental performance utilized by the agency that also provides technical and economic benefits.
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incorporating road safety into Pavement management
Transportation Research Record, 2000Co-Authors: Susan L Tighe, Ningyuan Li, Lynne Cowe Falls, Ralph HaasAbstract:Improving road safety through proper Pavement Engineering and maintenance should be one of the major objectives of Pavement management systems. When Pavements are evaluated in terms of safety, a number of factors related to Pavement Engineering properties are raised, such as Pavement geometric design, paving materials and mix design, Pavement surface properties, shoulder type, and Pavement color and visibility. Each year there are voluminous annual reports on traffic accident statistics and discussions of such road safety issues as road safety modeling and Pavement safety measurements and criteria. Although road safety may be considered a separate area, it should be incorporated into Pavement management systems. The main Pavement Engineering relationships associated with road safety are identified, and the various aspects of road safety related to Pavement management, such as Pavement types, Pavement surface macrotexture and microtexture, and Pavement safety measurements, criteria, and evaluation methods, are discussed. A systematic approach is proposed for the coordination of Pavement maintenance programs with road safety improvement and the incorporation or integration of safety management with Pavement and other management systems. Finally, a list of possible remedial measures for road safety improvements associated with Pavement maintenance activities is recommended.