Organically treating montmorillonite with dual surfactants to modify bitumen

Xing, Hongyuan; Liang, Yangshi; Liu, Gang; Zhang, Yao; Liu, Xing; Fu, Wei

doi:10.1016/j.conbuildmat.2020.120705

Cited by 12 publications

(3 citation statements)

References 17 publications

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“…Organic modification is an efficient way to form intercalated or exfoliated structures and improve their compatibility as well. ,− ,− Since interlayer spacing could be expanded by organic modification, it is easier for asphalt chains to intercalate into interlayers, or layered silicates platelets can exfoliate from each other by interacting with asphalt binders. As a result, the action of organic modification further enhances the positive effects of layered silicates on the aging resistance of asphalt.…”

Section: Improving Anti-aging Properties Of Asphalt With Nanomaterialsmentioning

confidence: 99%

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%

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

et al. 2021

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“…According to global practice [ 8 , 9 , 10 , 11 , 12 , 13 ], an effective way to improve the quality of a bituminous binder is its modification. The most well-known and widely used adhesive action modifiers in road construction are surface-active substances (surfactants), most often cationic ones [ 14 , 15 , 16 , 17 ]. The mechanism of their influence on the properties of bitumen–mineral compositions is based on adsorption processes.…”

Section: Introductionmentioning

confidence: 99%

Increasing the Adhesion of Bitumen to the Surface of Mineral Fillers through Modification with a Recycled Polymer and Surfactant Obtained from Oil Refining Waste

Dyuryagina,

Byzova,

Ostrovnoy

et al. 2024

Polymers

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The purpose of this study was to optimize the processes of wetting fillers by varying the content of such additives as a surfactant and polymer in bitumen–mineral compositions in order to achieve optimal performance. The cosine of the contact angle was used as a criterion for assessing the adhesion of the bitumen binder to the surface of crushed stone. The effect of the additives’ concentration on surface tension and adhesive efficiency in binary and ternary bitumen compositions was studied. The following chemicals were used as additives: the original product AS-1, industrial additive AMDOR-10, and used sealant AG-4I, a product based on polyisobutylene and petroleum oils. AS-1 was obtained from the oil refining waste in the laboratory of M. Kozybayev North Kazakhstan University. The ternary “bitumen–AG-4I–AS-1” composition provided a maximum decrease in the contact angle by 15.96° (gray crushed stone) and by 14.06° (red crushed stone) relative to original bitumen, providing better wettability of the mineral filler particles with the bitumen, and as a result, maximum adhesion between the bitumen and crushed stone. The optimal performance of the bitumen–mineral composition was recorded with the joint presence of additives in the bitumen: AS-1 at a level of 1.0 g/dm3 and AG-4I at a level of 1.0 g/dm3.

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“…Among them, MMT as a two-dimensional nanomaterial has been widely studied by scholars because of its ability to modify many properties of asphalt [ 9 , 10 , 11 ]. Nano-montmorillonite is a type of layered silicate with a thickness of less than 10 nm and therefore has a very large value of aspect ratio.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Effectiveness of Nano-Montmorillonite on Asphalt Binder from Rheological, Thermodynamics, and Chemical Perspectives

et al. 2021

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In this research, the feasibility of using nano-montmorillonite (MMT) in asphalt binders was investigated in terms of rheological properties, thermomechanical properties, and chemical structure composition. Different doses of MMT were added to the base asphalt and styrene–butadiene–styrene (SBS) asphalt as test subjects. The effect of nanomaterials on the high-temperature resistance of asphalt binders to permanent deformation was analyzed from dynamic mechanical rheology using the multiple stress creep recovery (MSCR) test. The sessile drop method test based on surface free energy (SFE) theory was employed and thermodynamic parameters such as surface free energy, cohesive work, and adhesion work were calculated to analysis the change in energy of the asphalt binder. In addition, changes in the chemical structure and composition of the asphalt binder were examined by Fourier transform infrared (FTIR) and gel permeation chromatography (GPC) tests. The results showed that MMT can effectively enhance the high-temperature elastic recovery and plastic deformation resistance of the asphalt binder. The intercalation structure produced in the asphalt binder enhanced the overall cohesive power and adhesion to the aggregate. The anchoring effect of the intercalation structure resulted in an increase in the macromolecular weight of the binder was demonstrated, indicating that MMT enhanced the overall intermolecular forces of the binder. In addition, the molecular crystal structure was characterized by characteristic functional groups in the infrared spectra, while demonstrating that no chemical reaction occurs during the modification of the binder by the nanomaterials.

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Organically treating montmorillonite with dual surfactants to modify bitumen

Cited by 12 publications

References 17 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

Increasing the Adhesion of Bitumen to the Surface of Mineral Fillers through Modification with a Recycled Polymer and Surfactant Obtained from Oil Refining Waste

Investigating the Effectiveness of Nano-Montmorillonite on Asphalt Binder from Rheological, Thermodynamics, and Chemical Perspectives

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