Process Modeling and Experimental Verification of the Conditions of Ice Coverage Destruction of Automobile Roads

Doudkin, Mikhail; Kim, Alina; Guryanov, Georgiy; Młyńczak, Marek; Eleukenov, Murat; Bugaev, A.M.; Rogovsky, Valery

doi:10.26480/jmerd.04.2019.01.08

Cited by 7 publications

(10 citation statements)

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“…Coefficient of homogeneity at 2% reinforcement: 1 test, k o = 0.87; 2 samples, k o = 1.0; 3 samples, k o = 0.98, which also meets the requirements of clause 6.1.40 [3,[13][14][15][16][17][18], (1.1 ≥k o ≥ 0.9).…”

Section: Experimental Researchmentioning

confidence: 78%

“…The average density of the SFB mixture is 2420 kg/m3. Delamination coefficient at 2% reinforcement: -at 3 s of vibration, k р = 0.938; -at 6 s of vibration, k р = 0,882,which meets the requirements of clause 6.1.40 [3], (k р ≥ 0.85).…”

Section: Experimental Researchmentioning

confidence: 86%

“…To compare the effectiveness of ITEX fiber with existing analogs, SFRC with an anchor fiber 1/50 Hendix and Dramix 3D 80/60BG was also considered. The amount percentage of reinforcement with wire fiber was adopted as 1%, 1.5% and 2%.The composition of the components for fine-grained concrete matrix was selected in accordance with the recommendations of [3,[8][9][10][11][12] and is shown in table 1.…”

Section: Experimental Researchmentioning

confidence: 99%

“…The ropes were preliminarily annealed at a temperature of 400-10000С, then they were cut into segments of a given length, which were split by grinding. Subsequently, steel-fiber-reinforcedconcrete structures for various purposes were made from the obtained fiber [1][2][3]. The disadvantage of this method was the loss of strength of wires during their heat treatment and the difficulty of washing and drying the finished fiber due to the lack of special equipment for these works.…”

Section: Introductionmentioning

confidence: 99%

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Properties of the Steel-Fiber-Reinforcedconcrete With Dispersed Reinforcing Wire Fiber From Technogenic Waste

Doudkin¹,

Kim²,

Vavilov³

et al. 2020

OF THE ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN JSC «D

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The article presents the results of theoretical and, most importantly, experimental studies of some properties of steel-fiber-reinforcedconcrete reinforced with dispersed reinforcement from industrial wastes, namely, ITEX steel wire fiber from SPA INNOTECH from spent steel ropes, a large number of which are used as raw materials for fiber production, has accumulated in the region with the mining industry (East Kazakhstan region). The result of the research was indicators of tensile strength of fiber-reinforced concrete during bending of samples, characteristics of crack resistance, and impact strength indicators of fiber-reinforced concrete reinforced with fiber from industrial waste. Knowing and demonstrating these characteristics will make it possible to more effectively ensure the possibility of selling a new product on the building materials market. This publication has been carried out as part of the sub-project Technology for Manufacturing Fiber from Technogenic Wastes, funded by the Government of the Republic of Kazakhstan and the World Bank, Project for Stimulating Productive Innovations.

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Section: Experimental Researchmentioning

confidence: 78%

Section: Experimental Researchmentioning

confidence: 86%

Section: Experimental Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Properties of the Steel-Fiber-Reinforcedconcrete With Dispersed Reinforcing Wire Fiber From Technogenic Waste

Doudkin¹,

Kim²,

Vavilov³

et al. 2020

OF THE ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN JSC «D

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show abstract

“…-improper functioning of the machines and devices, reducing their technical parameters [4][5][6][7],…”

Section: Introductionmentioning

confidence: 99%

Research into ultrasoic and hydrodinamic cavitation phenomena in a hydraulic system

Stryczek

Antoniak

Banaś

et al. 2021

M&AT

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The article describes the course of the ultrasonic cavitation in a hydraulic tank and the hydrodynamic cavitation in a gear pump. The course of those phenomena was confirmed in experimental tests carried out with the use of a tank and a pump made of transparent plastics. It has been proved that the oscillator-cavitation system made according to the original project is useful to induce the phenomenon of ultrasonic cavitation. It has also been shown that the PIV visualization method, consisting in a special system of illuminating transparent objects and recording the flow through those objects with a fast camera, is useful for the studying of the cavitation phenomena. A visible interaction between the ultrasonic and the hydrodynamic cavitation was observed. The induction of ultrasonic cavitation in the tank causes degassing of the oil, and the degassed oil supplying the pump reduces the hydrodynamic cavitation in its internal channels and clearances. This is an example of beneficial effects of the ultrasonic cavitation on the operation of a pump and a hydraulic system. The presented work is an example of effective co-operation between the communities of Wroclaw University of Science and Technology and Igor Sikorsky Kiyv Politechnic Institute, National Technical University of Ukraine.

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New technologies of ice roads construction to maintain the sustainable cold chain of supply in the northern regions of Russia

2023

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The article reviews the current state of winter ice roads (winter glacial roads) and presents data that confirm the necessity of their service life extension in order to maintain the uninterrupted cold chain of supply in the northern regions of Russia. The regulatory documents that regulate the design engineering and construction of winter ice roads are analyzed. The existing methods and technologies of winter roads construction have been analyzed. The possibility of using the geosynthetic materials for ice roads reinforcement is considered, as well as possible challenges arising from their use are exposed for consideration. The use of chemical modifiers for the creation of structural materials based on water ice is shown to be prospective and promising, especially in combination with the reinforcement of ice blocks. Modern approaches to choice of ice modifying compounds and materials for ice reinforcing are described, as well as criteria achieved on the basis of their application. The scientific studies confirming the possibility of a significant increase in the bearing capacity of glacial coverage and, as a result, an earlier start of their operation is carried out. It is shown that the combined use of reinforcement and ice modifiers allowed the ice sample to maintain its integrity even under exposure to significant deformation loads. The technical possibility of additional reinforcement of ice transport routes as a result of optimizing the modal parameters of their formation, depending on weather conditions, is also described.

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Process Modeling and Experimental Verification of the Conditions of Ice Coverage Destruction of Automobile Roads

Cited by 7 publications

References 0 publications

Properties of the Steel-Fiber-Reinforcedconcrete With Dispersed Reinforcing Wire Fiber From Technogenic Waste

Properties of the Steel-Fiber-Reinforcedconcrete With Dispersed Reinforcing Wire Fiber From Technogenic Waste

Research into ultrasoic and hydrodinamic cavitation phenomena in a hydraulic system

New technologies of ice roads construction to maintain the sustainable cold chain of supply in the northern regions of Russia

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