Bitumen-polymer compositions for asphalt concrete

One of the criteria for the level of development of countries is the condition of the road network. At present, the transport and operational characteristics of the majority of domestic highways lag behind the world level. Therefore, the need to create road surfaces with increased durability is very...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-08, Vol.1990 (1), p.12009
Main Authors: Fedorova, L V, Tretyakova, Z O, Voronina, M V
Format: Article
Language:English
Subjects:
Asphalt
asphalt concrete
binder
bitumen
Bitumens
Melt temperature
modification
Relaxation time
Roads
Roofing
Roofing materials
Temperature dependence
thermoplastic elastomer
Thermoplastic elastomers
Time dependence
Time measurement
Transportation networks
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Summary:One of the criteria for the level of development of countries is the condition of the road network. At present, the transport and operational characteristics of the majority of domestic highways lag behind the world level. Therefore, the need to create road surfaces with increased durability is very urgent. As a result of this research bitumen modified with polymers have been investigated. Based on measurements of time-dependent viscosity parameters (melting temperature, penetration and spin-spin relaxation time T2), it was found that at a thiol content of more than 25%, a continuous phase can form, which manifests itself as a sharp change in the properties of bitumen and is associated with phase inversion. A good compatibility of thermoplastic elastomers with a bituminous binder was revealed, and the resulting modified systems have high technical characteristics The proposed method for modifying bitumen can be recommended for obtaining roofing materials.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1990/1/012009