The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform
Yida Fang - One of the best experts on this subject based on the ideXlab platform.
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Protecting Maintenance Equipment against Chloride Roadway Deicers: Corrosion Mechanisms, Test Methods, and Proactive Approaches
2020Co-Authors: Scott Jungwirth, Nicholas Seeley, Yida FangAbstract:Roadway Maintenance Equipment in cold climates is exposed to high amounts of chloride-based deicers that are inherently corrosive. As such, various structural, hydraulic, and electrical components on Maintenance Equipment are vulnerable to the deleterious effects of chloride roadway deicers and their premature deterioration can negatively affect the performance, reliability and service life of the Equipment fleet. This work aims to shed more light on this important asset management issue, by providing an overview of the relevant corrosion mechanisms, corrosion-prone parts, and test methods. More importantly, this work presents an overview of current approaches available to manage the risk of deicer corrosion to Equipment assets, including design considerations, materials selection, and Maintenance strategies. The information aims to enable Equipment engineers and managers to gain a better understanding of this technical issue and to make more informed decisions in corrosion risk management.
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Proactive Approaches to Protecting Maintenance Equipment against Chloride Roadway Deicers
Journal of Cold Regions Engineering, 2016Co-Authors: Scott Jungwirth, Nicholas Seeley, Yida FangAbstract:AbstractRoadway Maintenance Equipment in cold climates is exposed to high amounts of chloride-based deicers that are inherently corrosive. As such, various structural, hydraulic, and electrical components on Maintenance Equipment are vulnerable to the deleterious effects of chloride roadway deicers, and their premature deterioration can negatively affect the performance, reliability, and service life of the Equipment fleet. This work aims to shed more light on this important asset management issue by providing an overview of corrosion-prone parts and current approaches available to proactively manage the risk of deicer corrosion to Equipment assets, including design considerations, materials selection, and Maintenance strategies. The information aims to enable Equipment engineers and managers to gain a better understanding of this technical issue and make more informed decisions in corrosion risk management.
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Corrosion inhibitors for metals in Maintenance Equipment: introduction and recent developments
Corrosion Reviews, 2014Co-Authors: Yongxin Li, Scott Jungwirth, Yaoyao Zhang, Nicholas Seely, Yida FangAbstract:AbstractCorrosion inhibitors are extensively applied to prevent the corrosion of metals in Maintenance and vehicles used by transportation agencies. The aim of this review is to examine the state of the corrosion inhibitors for the protection of various metals/alloys commonly used in Maintenance Equipment and vehicles and to identify cost-effective, high-performance corrosion inhibitors that may contribute to the preservation of Equipment assets. The focus is placed on the metallic corrosion induced or aggravated by chlorides at ambient temperature and pressure and near-neutral pH (6–8).
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corrosion by chloride deicers on highway Maintenance Equipment renewed perspective and laboratory investigation
Transportation Research Record, 2013Co-Authors: Yongxin Li, Scott Jungwirth, Nicholas Seeley, Yida Fang, Emily JacksonAbstract:This work aimed to identify and evaluate best practices that could be implemented to minimize the corrosion of chloride deicers on winter application Equipment and vehicles. Identified practices included design improvements, Maintenance practices, anticorrosion coatings, corrosion inhibitors, salt removers, and so on. A nationwide survey was conducted to capture current knowledge about estimating the deicer corrosion costs to vehicles and Equipment, defining the chloride deicer corrosion problem, and identifying best practices or products for managing the problem. For agencies that report deicer corrosion to Equipment as a significant issue, the total cost of current corrosion management and corrosion risks related to deicer exposure was estimated to average $1.06 million and $14.05 million per year, respectively. On average, deicer exposure leads to risks in six areas: 17.3% depreciation in Equipment value, 8.5% increase in Equipment downtime, 11.9% reduction in Equipment reliability, 17.3% reduction in ...
Christopher M. Miller - One of the best experts on this subject based on the ideXlab platform.
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The Impacts of Winter Maintenance Equipment on Vehicle Delay on Interstates
International Journal for Traffic and Transport Engineering, 2020Co-Authors: William A Holik, William H Schneider, Mallory Crow, Christopher M. MillerAbstract:This paper evaluates the impacts of specialty winter Maintenance Equipment on vehicle delay by fusing Bluetooth speed, weather, and winter Maintenance treatment data. A specialty plow capable of plowing two lanes in one pass is compared to a standard winter Maintenance truck that plows and treats one lane per pass. Each type of Equipment is analyzed on the same two-lane interstate highway, with the two trucks maintaining different sections to avoid cross contamination. The researchers deployed multiple Bluetooth nodes along the roadway to capture vehicle speeds during Maintenance activities. The cumulative delay per mile is compared for the two trucks during light and heavy snowfall. The times when delay occurs are grouped into five-minute intervals for two scenarios including when the winter Maintenance Equipment has just passed through a Bluetooth node segment and for all recently-treated segments after the Equipment has exited the highway. The results indicated the specialty plow creates a larger delay than the standard truck when plowing two lanes and a similar delay when plowing one lane and the shoulder. However, when looking solely at heavy snowfall, the delay is similar for each type of Equipment, indicating the specialty plow is more effective during heavy snowfall.
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laboratory techniques for evaluating the effectiveness of salt neutralizers for the corrosion prevention of winter Maintenance Equipment
Anti-corrosion Methods and Materials, 2016Co-Authors: Alvaro A Rodriguez, Hongbo Cong, Chelsea N Monty, Christopher M. Miller, Evan K WujcikAbstract:Purpose The purpose of this study is to develop laboratory techniques to evaluate the inhibition efficiency of salt neutralizer (SN) solutions in the corrosion protection of metal alloys associated with winter Maintenance Equipment. Design/methodology/approach The corrosion resistance of alloys A36, B36 and B152 treated with SNs was evaluated by accelerated corrosion testing (ASTM B117) and electrochemical polarization curves. Characterization of inhibition solutions was performed by contact angle measurements, scanning electron microscopy, ultraviolet-visible spectroscopy and Fourier transform infrared spectroscopy. Findings Salt neutralizer systems act as mixed inhibitors in acidic media by changing the corrosion resistance ability of metal alloys because of the adsorption of surfactant molecules through their hydrophilic heads. The correlation of the corrosion rate of metal alloys and the inhibitor efficiency showed the influence of the SN type, its concentration, its effective adsorption constant and its contact angle on the alloy surface. Salt neutralizers with higher manufacturer’s recommended wash concentrations (MRWC) to critical wash concentration ratio, lower contact angle on the alloy surface and higher Keff were more successful at preventing corrosion on the alloys tested. Originality/value The results of this work provide, for the first time, both quantitative and qualitative information of the properties of washing techniques in the use of effective cleaning strategies for protecting winter Maintenance Equipment from corrosion. Other state departments of transportation facing similar weather conditions will be benefited by identifying measures and techniques to increase the corrosion resistance of their Equipment assets.
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evaluation of the effectiveness of salt neutralizers for washing snow and ice Equipment
2014Co-Authors: Chelsea N Monty, Alvaro A Rodriguez, Christopher M. Miller, William H SchneiderAbstract:In winter Maintenance, the chloride-based deicers used to keep roadways clear of snow and ice are highly corrosive to vehicles and Equipment. Corrosion of snow and ice Equipment is a major issue causing increased Maintenance and repair costs, reduced vehicle life, and increased vehicle downtime. Statistics show that road salt causes approximately $1500/ton of damage to vehicles, bridges, and the environment. Washing of winter Maintenance Equipment after exposure to ice control chemicals has been suggested as one possible solution to minimize corrosion. However, washing with soap and water has been shown to be insufficient in removing residual salt from winter Maintenance vehicles. Treating winter Maintenance Equipment with salt neutralizers, used in a variety of household and industrial applications, has been shown to prevent corrosion. Although the consensus points to the need for a reliable and easy to implement corrosion prevention strategy, at present there is not sufficient information available to determine the effectiveness of different wash systems at preventing corrosion. As the corrosion reduction data of salt neutralizer solutions on bare and coated metal surfaces is lacking, a systematic study has been carried out to provide quantitative information. A parallel study of six commercially available salt neutralizers is carried out for comparison. Analysis of the salt neutralizer solutions was carried out using contact angle, Ultra Violet-visible spectroscopy (UV-vis), and Scanning Electron Microscopy imaging (SEM). Corrosion inhibition for several metals treated with salt neutralizer was determined using potentiodynamic measurements and accelerated weight loss analysis (ASTM B117). When considering the effects of corrosion on winter Maintenance Equipment, it is important to study not only steel but also various “soft metals” (copper, aluminum, brass, etc.) that can be found in the wiring and other parts of the fleet. Electrical Impedance Spectroscopy and visual inspection were used to determine the ability of coated metal samples to prevent corrosion. A cost benefit analysis was completed to determine what specific conditions directly impact the cost effectiveness of corrosion prevention strategies.
Scott Jungwirth - One of the best experts on this subject based on the ideXlab platform.
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Protecting Maintenance Equipment against Chloride Roadway Deicers: Corrosion Mechanisms, Test Methods, and Proactive Approaches
2020Co-Authors: Scott Jungwirth, Nicholas Seeley, Yida FangAbstract:Roadway Maintenance Equipment in cold climates is exposed to high amounts of chloride-based deicers that are inherently corrosive. As such, various structural, hydraulic, and electrical components on Maintenance Equipment are vulnerable to the deleterious effects of chloride roadway deicers and their premature deterioration can negatively affect the performance, reliability and service life of the Equipment fleet. This work aims to shed more light on this important asset management issue, by providing an overview of the relevant corrosion mechanisms, corrosion-prone parts, and test methods. More importantly, this work presents an overview of current approaches available to manage the risk of deicer corrosion to Equipment assets, including design considerations, materials selection, and Maintenance strategies. The information aims to enable Equipment engineers and managers to gain a better understanding of this technical issue and to make more informed decisions in corrosion risk management.
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Proactive Approaches to Protecting Maintenance Equipment against Chloride Roadway Deicers
Journal of Cold Regions Engineering, 2016Co-Authors: Scott Jungwirth, Nicholas Seeley, Yida FangAbstract:AbstractRoadway Maintenance Equipment in cold climates is exposed to high amounts of chloride-based deicers that are inherently corrosive. As such, various structural, hydraulic, and electrical components on Maintenance Equipment are vulnerable to the deleterious effects of chloride roadway deicers, and their premature deterioration can negatively affect the performance, reliability, and service life of the Equipment fleet. This work aims to shed more light on this important asset management issue by providing an overview of corrosion-prone parts and current approaches available to proactively manage the risk of deicer corrosion to Equipment assets, including design considerations, materials selection, and Maintenance strategies. The information aims to enable Equipment engineers and managers to gain a better understanding of this technical issue and make more informed decisions in corrosion risk management.
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Preserving the value of highway Maintenance Equipment against roadway deicers: a case study and preliminary cost benefit analysis
Anti-corrosion Methods and Materials, 2016Co-Authors: Greg Hansen, Scott Jungwirth, Monty Mills, Yan ZhangAbstract:Purpose – This paper aims to report the best practices of deicer corrosion control adopted by the Washington State Department of Transportation (WSDOT) to preserve the performance, reliability and value of its highway Maintenance Equipment assets. Design/methodology/approach – To enable quantitative analyses, data were collected from a site visit to WSDOT, as well as from a survey of Maintenance practitioners from various transportation agencies. The direct costs related to Equipment corrosion aggravated by the exposure to roadway deicers were analyzed, along with the direct benefits of mitigating such corrosion, using WSDOT as a case study. In addition, the same preliminary cost benefit analysis was conducted for an “average” Department of Transportation in a northern climate. Findings – Both cases show a highly favorable benefit-to-cost ratio for enhanced investment in controlling the risk of deicer corrosion. Research limitations/implications – It has not yet been possible to confirm this compelling ar...
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Corrosion inhibitors for metals in Maintenance Equipment: introduction and recent developments
Corrosion Reviews, 2014Co-Authors: Yongxin Li, Scott Jungwirth, Yaoyao Zhang, Nicholas Seely, Yida FangAbstract:AbstractCorrosion inhibitors are extensively applied to prevent the corrosion of metals in Maintenance and vehicles used by transportation agencies. The aim of this review is to examine the state of the corrosion inhibitors for the protection of various metals/alloys commonly used in Maintenance Equipment and vehicles and to identify cost-effective, high-performance corrosion inhibitors that may contribute to the preservation of Equipment assets. The focus is placed on the metallic corrosion induced or aggravated by chlorides at ambient temperature and pressure and near-neutral pH (6–8).
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corrosion by chloride deicers on highway Maintenance Equipment renewed perspective and laboratory investigation
Transportation Research Record, 2013Co-Authors: Yongxin Li, Scott Jungwirth, Nicholas Seeley, Yida Fang, Emily JacksonAbstract:This work aimed to identify and evaluate best practices that could be implemented to minimize the corrosion of chloride deicers on winter application Equipment and vehicles. Identified practices included design improvements, Maintenance practices, anticorrosion coatings, corrosion inhibitors, salt removers, and so on. A nationwide survey was conducted to capture current knowledge about estimating the deicer corrosion costs to vehicles and Equipment, defining the chloride deicer corrosion problem, and identifying best practices or products for managing the problem. For agencies that report deicer corrosion to Equipment as a significant issue, the total cost of current corrosion management and corrosion risks related to deicer exposure was estimated to average $1.06 million and $14.05 million per year, respectively. On average, deicer exposure leads to risks in six areas: 17.3% depreciation in Equipment value, 8.5% increase in Equipment downtime, 11.9% reduction in Equipment reliability, 17.3% reduction in ...
William H Schneider - One of the best experts on this subject based on the ideXlab platform.
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The Impacts of Winter Maintenance Equipment on Vehicle Delay on Interstates
International Journal for Traffic and Transport Engineering, 2020Co-Authors: William A Holik, William H Schneider, Mallory Crow, Christopher M. MillerAbstract:This paper evaluates the impacts of specialty winter Maintenance Equipment on vehicle delay by fusing Bluetooth speed, weather, and winter Maintenance treatment data. A specialty plow capable of plowing two lanes in one pass is compared to a standard winter Maintenance truck that plows and treats one lane per pass. Each type of Equipment is analyzed on the same two-lane interstate highway, with the two trucks maintaining different sections to avoid cross contamination. The researchers deployed multiple Bluetooth nodes along the roadway to capture vehicle speeds during Maintenance activities. The cumulative delay per mile is compared for the two trucks during light and heavy snowfall. The times when delay occurs are grouped into five-minute intervals for two scenarios including when the winter Maintenance Equipment has just passed through a Bluetooth node segment and for all recently-treated segments after the Equipment has exited the highway. The results indicated the specialty plow creates a larger delay than the standard truck when plowing two lanes and a similar delay when plowing one lane and the shoulder. However, when looking solely at heavy snowfall, the delay is similar for each type of Equipment, indicating the specialty plow is more effective during heavy snowfall.
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evaluation of the effectiveness of salt neutralizers for washing snow and ice Equipment
2014Co-Authors: Chelsea N Monty, Alvaro A Rodriguez, Christopher M. Miller, William H SchneiderAbstract:In winter Maintenance, the chloride-based deicers used to keep roadways clear of snow and ice are highly corrosive to vehicles and Equipment. Corrosion of snow and ice Equipment is a major issue causing increased Maintenance and repair costs, reduced vehicle life, and increased vehicle downtime. Statistics show that road salt causes approximately $1500/ton of damage to vehicles, bridges, and the environment. Washing of winter Maintenance Equipment after exposure to ice control chemicals has been suggested as one possible solution to minimize corrosion. However, washing with soap and water has been shown to be insufficient in removing residual salt from winter Maintenance vehicles. Treating winter Maintenance Equipment with salt neutralizers, used in a variety of household and industrial applications, has been shown to prevent corrosion. Although the consensus points to the need for a reliable and easy to implement corrosion prevention strategy, at present there is not sufficient information available to determine the effectiveness of different wash systems at preventing corrosion. As the corrosion reduction data of salt neutralizer solutions on bare and coated metal surfaces is lacking, a systematic study has been carried out to provide quantitative information. A parallel study of six commercially available salt neutralizers is carried out for comparison. Analysis of the salt neutralizer solutions was carried out using contact angle, Ultra Violet-visible spectroscopy (UV-vis), and Scanning Electron Microscopy imaging (SEM). Corrosion inhibition for several metals treated with salt neutralizer was determined using potentiodynamic measurements and accelerated weight loss analysis (ASTM B117). When considering the effects of corrosion on winter Maintenance Equipment, it is important to study not only steel but also various “soft metals” (copper, aluminum, brass, etc.) that can be found in the wiring and other parts of the fleet. Electrical Impedance Spectroscopy and visual inspection were used to determine the ability of coated metal samples to prevent corrosion. A cost benefit analysis was completed to determine what specific conditions directly impact the cost effectiveness of corrosion prevention strategies.
Inggrid Arocho - One of the best experts on this subject based on the ideXlab platform.
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Engine Variable Impact Analysis of Fuel Use and Emissions for Heavy-Duty Diesel Maintenance Equipment
Transportation Research Record: Journal of the Transportation Research Board, 2020Co-Authors: Phil Lewis, Heni Fitriani, Inggrid ArochoAbstract:Heavy-duty diesel Maintenance Equipment consumes significant amounts\ud of fuel and consequently emits substantial quantities of pollutants. The\ud purpose of this study was to identify which engine activity variables had\ud the greatest impact on fuel use and emissions rates. A real-world data set\ud was used for a case study fleet containing backhoes, motor graders, and\ud wheel loaders. Multiple linear regression was used to assess the relationships\ud between engine activity variables and fuel use and emissions rates.\ud The engine activity variables of engine speed, manifold absolute pressure,\ud and intake air temperature were used to predict mass per time\ud fuel use and emissions rates of nitrogen oxides, hydrocarbons, carbon\ud monoxide, carbon dioxide, and particulate matter. The results indicated\ud that manifold absolute pressure had the greatest impact on fuel use and\ud emissions rate predictions. Based on this finding, fuel use and emissions\ud estimating models based on manifold absolute pressure were developed\ud as a practical estimating tool for practitioners
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engine variable impact analysis of fuel use and emissions for heavy duty diesel Maintenance Equipment
Transportation Research Record, 2015Co-Authors: Phil Lewis, Heni Fitriani, Inggrid ArochoAbstract:Heavy-duty diesel Maintenance Equipment consumes significant amounts of fuel and consequently emits substantial quantities of pollutants. The purpose of this study was to identify which engine activity variables had the greatest impact on fuel use and emissions rates. A real-world data set was used for a case study fleet containing backhoes, motor graders, and wheel loaders. Multiple linear regression was used to assess the relationships between engine activity variables and fuel use and emissions rates. The engine activity variables of engine speed, manifold absolute pressure, and intake air temperature were used to predict mass per time fuel use and emissions rates of nitrogen oxides, hydrocarbons, carbon monoxide, carbon dioxide, and particulate matter. The results indicated that manifold absolute pressure had the greatest impact on fuel use and emissions rate predictions. Based on this finding, fuel use and emissions estimating models based on manifold absolute pressure were developed as a practical e...
