Assessing the effects of premixing on the rheological properties for three-phases asphalt binder nano-composite including clay and SBS

Mortezaei, Mehrzad; Shabani, Shahin; Mohammadian-Gerzaz, Somayyeh

doi:10.1016/j.conbuildmat.2019.117151

Cited by 15 publications

(8 citation statements)

References 25 publications

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“…As a typical layered silicate, MMT with layered structures can hinder the penetration of heat and oxygen into the asphalt after being blended with asphalt. Yu et al and Mortezaei et al found that MMT/SBS (Na-MMT/SBS and OMMT/SBS)-modified asphalt has a better anti-thermo-oxidative aging property during short-term and long-term aging processes than unmodified asphalt, , achieved by the formation of intercalated or exploited structures. Additionally, polystyrene-modified OMMT (PS-OMMT) was synthesized by the in situ polymerization method to increase the interlayer spacing of OMMT and improve the compatibility between OMMT- and SBS-modified asphalt .…”

Section: Improving Anti-aging Properties Of Asphalt With Nanomaterialsmentioning

confidence: 99%

“…Further, it is worrying that whether one of two components in the compound homogeneously dispersed in the other component or not. These might, to some extent, hinder the additive effects of inorganic nanomaterials and layered silicates in improving the anti-thermo-oxidative and anti-UV aging properties of asphalt. ,, …”

Section: Improving Anti-aging Properties Of Asphalt With Nanomaterialsmentioning

confidence: 99%

“…In addition, blending methods and conditions are two critical aspects that influence the interactions between nanomaterials and asphalt. ,, Although the melting blending method is simple and efficient and easier to apply on an industrial scale, the modified asphalt system is less homogeneous than that obtained from the mother liquor method. On the contrary, with the “bridge” effect of the solvent, uniform dispersion of nanomaterials in asphalt can be achieved by the mother liquor method.…”

Section: Challenges and Perspectivesmentioning

confidence: 99%

“…These might, to some extent, hinder the additive effects of inorganic nanomaterials and layered silicates in improving the anti-thermo-oxidative and anti-UV aging properties of asphalt. 78,118,119 To solve the above problems and further strengthen the efficiency of the nanomodifiers, Cheraghian and Wistuba prepared a silica/clay nanocomposite modifier to improve the anti-UV aging properties of asphalt. 55 Thus, in his research, unmodified and silica/clay nanocomposite-modified asphalt samples were aged by UV for 6 and 12 days, respectively.…”

Section: Improving Anti-aging Properties Ofmentioning

confidence: 99%

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Mini-Review on the Application of Nanomaterials in Improving Anti-Aging Properties of Asphalt

et al. 2021

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Exposed to detrimental environmental factors, such as heat, oxygen, and ultraviolet (UV) radiation, asphalt materials are prone to hardness and brittleness, namely, asphalt aging, which leads to deteriorating asphalt pavement properties and inducing a series of road distress. Theoretical and experimental studies have demonstrated that nanomaterial modifiers are a promising solution. This review discusses the application of single, compounded, and composited nanomaterial modifiers in improving the aging resistance of asphalt. Results showed that the introduction of single nanosilica, nanotitanium dioxide, and nanozinc oxide imparts positive effects on the anti-UV aging properties of asphalt, and single nanocalcium carbonate, carbon nanotubes, and layered silicates retard the thermo-oxidative aging rate of asphalt. Moreover, the multi-dimensional nanomaterial modifiers, a compound of nanometal oxide and layered silicates, comprehensively enhance the anti-thermo-oxidative and anti-UV aging properties of base asphalt and polymer-modified asphalt. Additionally, the composited nanomaterial modifiers could exert synergetic effects on asphalt properties and be a crucial area for future research. With the addition of nanomaterial modifiers, the asphalt aging processes are restrained by arresting volatile components of asphalt and lengthening the diffusion paths of oxygen molecules into asphalt binders. Another contribution mainly derives from functional groups against oxygen, which hinder the occurrences of oxidation reactions of asphalt. Many factors, such as nanomaterial modifier types, organic modification, nanomaterial concentration, and mixing methods and parameters, have influenced the anti-aging properties of nanomaterial-modified asphalt. In addition, the compatibility between nanomaterial modifiers with asphalt and nanomaterial dispersion in asphalt and the high costs involved in using nanomaterial modifiers are critical challenges for the application of nanomaterials in improving the aging resistance of asphalt. However, with cooperation between industrial communities and research institutes, an expanding application scale of nanomaterial-modified asphalt can be expected.

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Section: Improving Anti-aging Properties Of Asphalt With Nanomaterialsmentioning

confidence: 99%

Section: Improving Anti-aging Properties Of Asphalt With Nanomaterialsmentioning

confidence: 99%

Section: Challenges and Perspectivesmentioning

confidence: 99%

Section: Improving Anti-aging Properties Ofmentioning

confidence: 99%

See 2 more Smart Citations

Mini-Review on the Application of Nanomaterials in Improving Anti-Aging Properties of Asphalt

et al. 2021

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“…Previous research has used nanomaterials as modifiers of asphalt binders with positive results in improving the rheological properties and resistance to oxidative aging of the binders. Among these nanomaterials are inorganic nanoparticles such as silicon dioxide, titanium dioxide and calcium carbonate (NAZARI; NADERI; NEJAD, 2018), nanosilica and nanozinc (HONG et al, 2020), carbon nanotubes (MAMUM; ARFUZZAMAN, 2018), copper oxide (AMINI; HAYATI, 2020), nanoclay (MORTEZAEI et al, 2020), and titanium dioxide (MARINHO FILHO, 2017). Behbahani, Hamedi e Gilani (2020) used hydrated nano lime as an asphalt binder modifier and an antipickling agent to improve the resistance of asphalt mixtures.…”

Section: Introductionmentioning

confidence: 99%

Rheological Analysis of Asphalt Binders Modified with Hydrated Lime and Titanium Dioxide Nanoparticles

Neto

Ferreiro

Freire

et al. 2020

Int J Innov Educ Res

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The significant increase in traffic on paved roads has accelerated the deterioration of asphalt coatings. Because of this, the use of additives to modify the properties of the asphalt binder has been studied in order to improve the performance in relation to, mainly, permanent deformations and fatigue life. This work evaluates the changes in the rheological properties of CAP 50/70 modified with fractionated particles of hydrated lime and titanium dioxide nanoparticles, obtained from the use of a ball mill. For this purpose, the CAP 50/70 was modified with the addition of fractionated lime particles in the contents of 3%, 5% and 7% by weight of the pure binder and with 3% of ground nano TiO2 (180 nm). The modified samples showed less loss of mass in the short term aging, proving to be an antioxidant alternative. In addition, it was found that the modified binders provided an increase in G* (stiffness parameter) and, consequently, in the maximum Performance Grade (PG) temperature, allowing the use of the studied binders at higher temperatures. The binder modified with a content of 5% hydrated lime presented better results in the tests of permanent deformation (MSCR and LAS). The decrease in TiO2 granulometry increased the integrity of the binder and made it more sensitive to deformations under temperature variations, however, milled titanium dioxide showed a positive result in increasing the resistance of the asphalt binder to fatigue when compared to the binder with nano TiO2 220 nm. Finally, it was possible to establish that the addition of fractionated particles of hydrated lime to CAP 50/70 is a viable and effective technique that meets the requirements of DNIT for use in paving and that the incorporation of ground nano TiO2 (180 nm) attributed to the asphalt binder 50/70 higher working temperature in the field.

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Reutilization of crystalline waste plastics for modified asphalt using twin‐screw extrusion: Polyethylene and polypropylene as typical subjects

Jia

Yang

et al. 2022

J of Applied Polymer Sci

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The key technologies for waste plastic modified asphalt were storage stability and low temperature performance. In order to reutilize waste plastics for modified asphalt, a simple strategy, which based on recrystallization of the waste plastics, was proposed in this article. It was found that the pretreated waste plastics had higher crystallinity and smaller crystal size. Moreover, the deformation resistance and stability of the modified asphalt were improved. In addition, a rational mechanism called “polymer crystals confinement effect” was proposed to reveal the intrinsic correlation between the properties of crystalline waste plastics and modified asphalt.

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Assessing the effects of premixing on the rheological properties for three-phases asphalt binder nano-composite including clay and SBS

Cited by 15 publications

References 25 publications

Mini-Review on the Application of Nanomaterials in Improving Anti-Aging Properties of Asphalt

Mini-Review on the Application of Nanomaterials in Improving Anti-Aging Properties of Asphalt

Rheological Analysis of Asphalt Binders Modified with Hydrated Lime and Titanium Dioxide Nanoparticles

Reutilization of crystalline waste plastics for modified asphalt using twin‐screw extrusion: Polyethylene and polypropylene as typical subjects

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