Modeling of reflected cracks in asphalt concrete pavement of highways

The paper considers the issues of crack resistance of multilayer systems made of asphalt concrete, namely: the causes and features of the occurrence and development of "reflected" cracks are investigated. A study of the operational state of highways was carried out and the prerequisites fo...

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Autores principales:	Kamenchukov Aleksey, Ukrainskiy Ilya, Bushuev Nikina, Kim Nikolay
Formato:	article
Lenguaje:	EN
Publicado:	Institut za istrazivanja i projektovanja u privredi 2021
Materias:	highway reflected cracks operational state coating quality defects strength assessment stress-strain state Technology T Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/4d5d450fb0ac49ebaa564742564188bb
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spelling	oai:doaj.org-article:4d5d450fb0ac49ebaa564742564188bb2021-12-05T21:23:07ZModeling of reflected cracks in asphalt concrete pavement of highways1451-41171821-319710.5937/jaes0-29136https://doaj.org/article/4d5d450fb0ac49ebaa564742564188bb2021-01-01T00:00:00Zhttps://scindeks-clanci.ceon.rs/data/pdf/1451-4117/2021/1451-41172102466K.pdfhttps://doaj.org/toc/1451-4117https://doaj.org/toc/1821-3197The paper considers the issues of crack resistance of multilayer systems made of asphalt concrete, namely: the causes and features of the occurrence and development of "reflected" cracks are investigated. A study of the operational state of highways was carried out and the prerequisites for the formation of defects on the pavement were determined, including the regional features of the work of the road structure. The authors comprehensively studied the causes of internal and external defects and deformations of asphalt concrete pavements. The most popular technologies for sealing cracks and restoring the pavement are considered, the experience of repairing roads in the western part of Russia, Europe and the USA is also investigated. The results of determining the rate of formation and development of defects in the surface of the exploited roads are presented. In laboratory conditions, work was carried out to simulate cracks in two-layer samples of fine-grained asphalt concrete. Test specimens with a height and diameter of 10 cm were made by molding and compacted in layers, a crack was laid in the lower layer of the specimen. After gaining strength, the samples were tested for compression. Analysis of the results of physical modeling made it possible to put forward an assumption about the existence of a relationship between the presence (absence) of internal defects in the coating and the strength of the structure. To confirm the hypothesis, mathematical modeling of the operation of a two-layer system in the GenIDE32 software package was performed. Evaluation of the stress-strain state by the finite element method showed the presence of characteristic zones of system weakening around the defect area. In a two-layer system, there is an increase in internal stresses and strains around the crack, as well as a decrease in the overall strength (stability) of the system. In conclusion, the influence of internal defects of asphalt concrete coatings on the process of formation of "reflected" cracks were identified.Kamenchukov AlekseyUkrainskiy IlyaBushuev NikinaKim NikolayInstitut za istrazivanja i projektovanja u privrediarticlehighwayreflected cracksoperational statecoating qualitydefectsstrength assessmentstress-strain stateTechnologyTEngineering (General). Civil engineering (General)TA1-2040ENIstrazivanja i projektovanja za privredu, Vol 19, Iss 2, Pp 466-474 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	highway reflected cracks operational state coating quality defects strength assessment stress-strain state Technology T Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	highway reflected cracks operational state coating quality defects strength assessment stress-strain state Technology T Engineering (General). Civil engineering (General) TA1-2040 Kamenchukov Aleksey Ukrainskiy Ilya Bushuev Nikina Kim Nikolay Modeling of reflected cracks in asphalt concrete pavement of highways
description	The paper considers the issues of crack resistance of multilayer systems made of asphalt concrete, namely: the causes and features of the occurrence and development of "reflected" cracks are investigated. A study of the operational state of highways was carried out and the prerequisites for the formation of defects on the pavement were determined, including the regional features of the work of the road structure. The authors comprehensively studied the causes of internal and external defects and deformations of asphalt concrete pavements. The most popular technologies for sealing cracks and restoring the pavement are considered, the experience of repairing roads in the western part of Russia, Europe and the USA is also investigated. The results of determining the rate of formation and development of defects in the surface of the exploited roads are presented. In laboratory conditions, work was carried out to simulate cracks in two-layer samples of fine-grained asphalt concrete. Test specimens with a height and diameter of 10 cm were made by molding and compacted in layers, a crack was laid in the lower layer of the specimen. After gaining strength, the samples were tested for compression. Analysis of the results of physical modeling made it possible to put forward an assumption about the existence of a relationship between the presence (absence) of internal defects in the coating and the strength of the structure. To confirm the hypothesis, mathematical modeling of the operation of a two-layer system in the GenIDE32 software package was performed. Evaluation of the stress-strain state by the finite element method showed the presence of characteristic zones of system weakening around the defect area. In a two-layer system, there is an increase in internal stresses and strains around the crack, as well as a decrease in the overall strength (stability) of the system. In conclusion, the influence of internal defects of asphalt concrete coatings on the process of formation of "reflected" cracks were identified.
format	article
author	Kamenchukov Aleksey Ukrainskiy Ilya Bushuev Nikina Kim Nikolay
author_facet	Kamenchukov Aleksey Ukrainskiy Ilya Bushuev Nikina Kim Nikolay
author_sort	Kamenchukov Aleksey
title	Modeling of reflected cracks in asphalt concrete pavement of highways
title_short	Modeling of reflected cracks in asphalt concrete pavement of highways
title_full	Modeling of reflected cracks in asphalt concrete pavement of highways
title_fullStr	Modeling of reflected cracks in asphalt concrete pavement of highways
title_full_unstemmed	Modeling of reflected cracks in asphalt concrete pavement of highways
title_sort	modeling of reflected cracks in asphalt concrete pavement of highways
publisher	Institut za istrazivanja i projektovanja u privredi
publishDate	2021
url	https://doaj.org/article/4d5d450fb0ac49ebaa564742564188bb
work_keys_str_mv	AT kamenchukovaleksey modelingofreflectedcracksinasphaltconcretepavementofhighways AT ukrainskiyilya modelingofreflectedcracksinasphaltconcretepavementofhighways AT bushuevnikina modelingofreflectedcracksinasphaltconcretepavementofhighways AT kimnikolay modelingofreflectedcracksinasphaltconcretepavementofhighways
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Modeling of reflected cracks in asphalt concrete pavement of highways

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