Composite Material for Railroad Tie

Stepanov, V.V.; Saldaev, V.A.; Tsvetkov, V. E.

doi:10.4028/www.scientific.net/ssp.265.587

Cited by 24 publications

(2 citation statements)

References 26 publications

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“…Additionally, in connection with planned renovations of the railways in Poland, these amounts may increase significantly [ 1 ]. Despite the tendency to replace wooden ties with ties made of concrete and the numerous research projects focused on finding other composite materials for tie production [ 2 , 3 , 4 ], the problem of disposal of old ties installed a few decades ago and dismantled nowadays is recent. This will probably be problematic for the next several dozens of years since a small portion of railroads is still built with wooden ties impregnated with creosote.…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis and Torrefaction—Thermal Treatment of Creosote-Impregnated Railroad Ties as a Method of Utilization

et al. 2023

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A fundamental issue of waste management and the rail transport industry is the problem of utilizing used railroad ties. Wooden railroad ties are treated with a preservative, usually creosote. Due to their high toxicity, railroad ties are considered hazardous waste and must be utilized under various directives. It is proposed to utilize the troublesome waste by using the pyrolysis and torrefaction process. The research proves that the thermal method is effective for disposing of this type of waste. Torrefaction up to 250 °C gives high efficiency of impregnation removal, while pyrolysis up to 400 °C completely neutralizes waste. A series of experiments were conducted for various final pyrolysis temperatures to determine a minimum temperature for which the obtained solid products are free from creosote. Extraction with the use of the Soxhlet technique was performed for the raw materials and the obtained solid products—chars. The oil content for liquid fraction was also examined for each sample. As a result of the thermal treatment of the waste, fuel with combustion parameters better than wood was obtained. For a high final temperature of the process, the calorific value of char is close to that of hard coal.

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Section: Introductionmentioning

confidence: 99%

Pyrolysis and Torrefaction—Thermal Treatment of Creosote-Impregnated Railroad Ties as a Method of Utilization

et al. 2023

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“…It is necessary to develop sustainable, economic and reliable materials for railway sleepers (or ties) to overcome the many limitations of the materials that are currently being used for sleepers, such as the scarcity of timber, the corrosion of steel and the low durability of concrete under chemical environments [ 12 ]. Several types of railway sleepers have been developed using different composite materials as alternatives by mimicking the structural responses of wooden railway sleepers [ 13 , 14 , 15 , 16 , 17 , 18 ]. For example, a variety of composite materials were developed for railway sleepers in the late 1990s and early 2000s, such as glass-fiber reinforced high-density polyethylene (HDPE) matrix composite, polymer-fiber reinforced HDPE matrix composite, and mineral by-product combined with HDPE matrix composite [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Coal Ash Particle-Reinforced Recycled Plastic-Based Composites for Sustainable Railway Sleepers

Yoon

Sung

et al. 2020

Polymers

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This experimental research investigates the mechanical properties of municipal plastic waste-based particulate composites reinforced with coal ash (CA), the by-product of thermal power plants, for sustainable railway sleepers. Six series of sustainable composites filled with inorganic mineral fillers, including CA, were prepared by a twin-screw extruder and a compression molding machine. The effect of mix design variables—such as filler type, contents and the particle size of the filler—on mechanical properties—including tensile, compression and flexural properties—and morphology were characterized. The scanning electron microscopy (SEM) was employed to examine the morphology of the composites, which revealed the uniform dispersion of fillers in the polymer matrix. The study results conclude that the recycled plastic-based composite with the addition of CA up to 60% is suitable for railway sleeper applications. This experimental study may provide new insight into the railway applications of the developed composites under service loading conditions including traffic loading and earthquake.

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Increasing Calorific Value of Biogas by Steam Explosion Activation of Renewable Raw Materials

Просвирников

Sadrtdinov

Саттарова

2019

Lecture Notes in Mechanical Engineering

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Composite Material for Railroad Tie

Abstract: The article presents the results of research in the field of processing wood and thermopolymer waste to produce new high-performance compounds, which may be used in the production of composite railroad ties.

Cited by 24 publications

References 26 publications

Pyrolysis and Torrefaction—Thermal Treatment of Creosote-Impregnated Railroad Ties as a Method of Utilization

Pyrolysis and Torrefaction—Thermal Treatment of Creosote-Impregnated Railroad Ties as a Method of Utilization

Mechanical Properties of Coal Ash Particle-Reinforced Recycled Plastic-Based Composites for Sustainable Railway Sleepers

Increasing Calorific Value of Biogas by Steam Explosion Activation of Renewable Raw Materials

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