Using Large-Tonnage Industrial Waste to Create Bitumen Composites With Improved Fatigue Life

Фролов, Ю. А.; Zvereva, U. G.; Dudareva, T. V.; Красоткина, И. А.; Nikolskiy, V.G.; Lyusova, L. R.; Naumova, Yu. A.

doi:10.32362/2410-6593-2018-13-2-64-71

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…As things stand, the problem of utilization and recycling of sulfur-containing wastes still remains relevant [64]. The oil production, oil processing industry and transport structures are environmentally hazardous areas that have a negative impact on the environment as a result of the storage of large-tonnage sulfur waste, the growth of which increases every year with an escalation in the level of extraction and processing of mineral resources [65].…”

Section: Environmental Impact Of Sulfur Utilization Of Off-grade Sulfurmentioning

confidence: 99%

Issues of the Impact of Granulated Sulfur Transportation on the Environmental Components

Иванов¹,

Smirnov²,

Lisay³

et al. 2023

J. Ecol. Eng.

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Nowadays, sulfur is considered one of the primary resources of the chemical industry, most of which is produced as a refinery by-product during the processing of oil and natural gas. Sulfur production volumes are increasing every year, while the demand for it does not always match the growing supply, which leads to a serious problem of sulfur surplus in the world market. Granulated sulfur -the main commercial type of elemental sulfur -is transported in large quantities both by land and sea and can have a negative impact on the environment. At the moment, the issue of the negative impact of granulated sulfur on the environment has not been fully studied, which determines the relevance of this research. This review article presents the global market of granulated sulfur, paying attention to its safe transport -from the producer to the consumer. The potentially harmful factors of the impact of sulfur handling on elements of the natural environment, such as atmospheric air, water reservoirs, soil and vegetation, were also taken into account.

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Section: Environmental Impact Of Sulfur Utilization Of Off-grade Sulfurmentioning

confidence: 99%

Issues of the Impact of Granulated Sulfur Transportation on the Environmental Components

Иванов¹,

Smirnov²,

Lisay³

et al. 2023

J. Ecol. Eng.

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Composite Modificator of Asphalt-Concrete Obtained by the Method of High-Temperature Shear-Induced Grinding of Crumb Rubber and SBS Thermoelastoplast

et al. 2018

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The mandatory requirement for creating high-quality asphalt concrete is the modification of the bituminous binder. Either polymers, typically SBS, or crushed vulcanizates are usually used as modifiers. Using the polymer modifier has a number of disadvantages: the poor compatibility of polymers with bitumen, the stratification of the modified binder during transportation and storage, the coalescence of the dispersed phase particles at the coating laying temperatures. The use of crushed vulcanizate as a modifier is limited due to the complexity of obtaining a particle with a micro-size and complex surface organization. By now a binary mixed powder "Polyepor-RP" based on rubber crumb and butadiene-styrene thermoplastic elastomer has been developed and obtained. It combines the advantages of both types of initial constituents and eliminates their shortcomings. The hybrid modifier is obtained by the method of high-temperature shear grinding. In addition, thanks to the use of modern rotary dispersants, the resulting hybrid modifier can be introduced into the asphalt mixture by uniformly loading it into the mixer at the closing stage of mixing, bypassing the long and energy-consuming stage of preparing the modified bituminous binder. The paper describes the comparative analysis of the rheological properties of four types of asphalt binders in accordance with the American testing system "SuperРave": unmodified bitumen of BND 60/90 grade; polymer-bitumen binder; bitumen modified with active rubber powder brand "Polyepor-A" and active binary powder brand "Polyepor-RP". It is established that the introduction of modifiers "Polyepor-A" and "Polyepor-RP" increases the resistance of asphalt pavement to the formation of ruts and increases the resistance to fatigue cracking. The introduction of the butadiene-styrene thermoplastic elastomer into bitumen has a positive effect only on the resistance to rutting. Using a hybrid modifier it is possible to obtain a rubberpolymer binder characterized by higher stability, resistant to delamination and phase separation, which will increase the durability of coatings

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Using Large-Tonnage Industrial Waste to Create Bitumen Composites With Improved Fatigue Life

Cited by 2 publications

References 3 publications

Issues of the Impact of Granulated Sulfur Transportation on the Environmental Components

Issues of the Impact of Granulated Sulfur Transportation on the Environmental Components

Composite Modificator of Asphalt-Concrete Obtained by the Method of High-Temperature Shear-Induced Grinding of Crumb Rubber and SBS Thermoelastoplast

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