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Nanomodified Polymer-Bitumen Binders
https://orcid.org/http://orcid.org/0000-0001-6879-0369
A modification of petroleum bitumen for road building was carried out by devulcanizing rubber crumb and adding modified dispersion, consisting of single-walled carbon nanotubes (SWCNT), distributed in industrial oil (I-20A). To solve the problem of distribution of nanotubes in industrial oil I-20A it is necessary to «break» their aggregates using ultrasound [26–28]. The SWCNTs distribution was observed using a HoribaLA-950 laser analyzer and a KFK-3 photoelectric photometer for optical density evaluating. Softening point, penetration index (PI), penetration at 25 °C (P25), ductility at 25 °C (D25) and elasticity at 25 °C (E25) were respectively determined to GOST 32054-2013, GOST 33134-2014, GOST 33136-2014, GOST 33138-2014, GOST EN 13398-2013 (Russian standards). With the introduction of nanotubes, the effect of the dispersed phase on the properties decreases and the presence of nanotubes in dispersion, when introduced after devulcanization, does not give a plasticizing effect. But it simultaneously increases both ductility and elasticity, which is rarely observed. The introduction of nanotubes before devulcanization plasticizes the binder by reducing the thermal distillation of the oil during devulcanization or by the plasticizing effect of nanotubes.
Nanomodified Polymer-Bitumen Binders
https://orcid.org/http://orcid.org/0000-0001-6879-0369
A modification of petroleum bitumen for road building was carried out by devulcanizing rubber crumb and adding modified dispersion, consisting of single-walled carbon nanotubes (SWCNT), distributed in industrial oil (I-20A). To solve the problem of distribution of nanotubes in industrial oil I-20A it is necessary to «break» their aggregates using ultrasound [26–28]. The SWCNTs distribution was observed using a HoribaLA-950 laser analyzer and a KFK-3 photoelectric photometer for optical density evaluating. Softening point, penetration index (PI), penetration at 25 °C (P25), ductility at 25 °C (D25) and elasticity at 25 °C (E25) were respectively determined to GOST 32054-2013, GOST 33134-2014, GOST 33136-2014, GOST 33138-2014, GOST EN 13398-2013 (Russian standards). With the introduction of nanotubes, the effect of the dispersed phase on the properties decreases and the presence of nanotubes in dispersion, when introduced after devulcanization, does not give a plasticizing effect. But it simultaneously increases both ductility and elasticity, which is rarely observed. The introduction of nanotubes before devulcanization plasticizes the binder by reducing the thermal distillation of the oil during devulcanization or by the plasticizing effect of nanotubes.
Nanomodified Polymer-Bitumen Binders
https://orcid.org/http://orcid.org/0000-0001-6879-0369
A modification of petroleum bitumen for road building was carried out by devulcanizing rubber crumb and adding modified dispersion, consisting of single-walled carbon nanotubes (SWCNT), distributed in industrial oil (I-20A). To solve the problem of distribution of nanotubes in industrial oil I-20A it is necessary to «break» their aggregates using ultrasound [26–28]. The SWCNTs distribution was observed using a HoribaLA-950 laser analyzer and a KFK-3 photoelectric photometer for optical density evaluating. Softening point, penetration index (PI), penetration at 25 °C (P25), ductility at 25 °C (D25) and elasticity at 25 °C (E25) were respectively determined to GOST 32054-2013, GOST 33134-2014, GOST 33136-2014, GOST 33138-2014, GOST EN 13398-2013 (Russian standards). With the introduction of nanotubes, the effect of the dispersed phase on the properties decreases and the presence of nanotubes in dispersion, when introduced after devulcanization, does not give a plasticizing effect. But it simultaneously increases both ductility and elasticity, which is rarely observed. The introduction of nanotubes before devulcanization plasticizes the binder by reducing the thermal distillation of the oil during devulcanization or by the plasticizing effect of nanotubes.
Nanomodified Polymer-Bitumen Binders
Lecture Notes in Civil Engineering
Vatin, Nikolai (editor) / Ayupov, Damir (author) / Makarov, Dmitry (author) / Kazakulov, Rauf (author)
International Scientific Conference on Socio-Technical Construction and Civil Engineering ; 2021 ; Kazan, Russia
2021-06-29
9 pages
Article/Chapter (Book)
Electronic Resource
English
Nanomodified Polymer-Bitumen Binders
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