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Effect of Mineral Filler Modification on the Intensity of Bitumen Aging
https://orcid.org/http://orcid.org/0000-0001-8289-2361
https://orcid.org/http://orcid.org/0000-0001-8302-4785
https://orcid.org/http://orcid.org/0000-0003-3194-9238
Changes in the properties of bitumen under the influence of high temperatures of preparation and transportation of the asphalt mixture leads to a significant decrease in the quality of the asphalt pavement. Studies on this problem have given rather contradictory opinions about the effect of various mineral materials on the bitumen aging and on the properties of asphalt concrete. The paper presents the results of research on the effect of mineral filler hydrophobized with GF-1 specimen on the intensity of bitumen aging at the technological temperature by changing the parameters of penetration, softening point, and cohesion of asphalt binders. It was found that all the studied characteristics of samples prepared on hydrophobized mineral filler change significantly less than on the original filler. This indicates a slowdown in the aging rate of bitumen in the composite with hydrophobized mineral filler. It is shown that an increase in the resistance of bitumen to aging during preparation when using a modified mineral filler is accompanied by an improvement in the structuring of bitumen with filler. Slowing down aging can also be associated with a more uniform distribution of the binder over the surface of the hydrophobized mineral filler, an increase in the interface between them, and the formation of more bonds.
Effect of Mineral Filler Modification on the Intensity of Bitumen Aging
https://orcid.org/http://orcid.org/0000-0001-8289-2361
https://orcid.org/http://orcid.org/0000-0001-8302-4785
https://orcid.org/http://orcid.org/0000-0003-3194-9238
Changes in the properties of bitumen under the influence of high temperatures of preparation and transportation of the asphalt mixture leads to a significant decrease in the quality of the asphalt pavement. Studies on this problem have given rather contradictory opinions about the effect of various mineral materials on the bitumen aging and on the properties of asphalt concrete. The paper presents the results of research on the effect of mineral filler hydrophobized with GF-1 specimen on the intensity of bitumen aging at the technological temperature by changing the parameters of penetration, softening point, and cohesion of asphalt binders. It was found that all the studied characteristics of samples prepared on hydrophobized mineral filler change significantly less than on the original filler. This indicates a slowdown in the aging rate of bitumen in the composite with hydrophobized mineral filler. It is shown that an increase in the resistance of bitumen to aging during preparation when using a modified mineral filler is accompanied by an improvement in the structuring of bitumen with filler. Slowing down aging can also be associated with a more uniform distribution of the binder over the surface of the hydrophobized mineral filler, an increase in the interface between them, and the formation of more bonds.
Effect of Mineral Filler Modification on the Intensity of Bitumen Aging
https://orcid.org/http://orcid.org/0000-0001-8289-2361
https://orcid.org/http://orcid.org/0000-0001-8302-4785
https://orcid.org/http://orcid.org/0000-0003-3194-9238
Changes in the properties of bitumen under the influence of high temperatures of preparation and transportation of the asphalt mixture leads to a significant decrease in the quality of the asphalt pavement. Studies on this problem have given rather contradictory opinions about the effect of various mineral materials on the bitumen aging and on the properties of asphalt concrete. The paper presents the results of research on the effect of mineral filler hydrophobized with GF-1 specimen on the intensity of bitumen aging at the technological temperature by changing the parameters of penetration, softening point, and cohesion of asphalt binders. It was found that all the studied characteristics of samples prepared on hydrophobized mineral filler change significantly less than on the original filler. This indicates a slowdown in the aging rate of bitumen in the composite with hydrophobized mineral filler. It is shown that an increase in the resistance of bitumen to aging during preparation when using a modified mineral filler is accompanied by an improvement in the structuring of bitumen with filler. Slowing down aging can also be associated with a more uniform distribution of the binder over the surface of the hydrophobized mineral filler, an increase in the interface between them, and the formation of more bonds.
Effect of Mineral Filler Modification on the Intensity of Bitumen Aging
Lecture Notes in Civil Engineering
Klyuev, Sergey Vasil'yevich (editor) / Klyuev, Alexander Vasil'yevich (editor) / Yadykina, V. V. (author) / Kuznetsova, E. V. (author) / Lebedev, M. S. (author)
International Conference Industrial and Civil Construction ; 2021 ; Belgorod, Russia
Proceedings of the International Conference Industrial and Civil Construction 2021 ; Chapter: 28 ; 189-194
2021-02-12
6 pages
Article/Chapter (Book)
Electronic Resource
English
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