Study of disperse polymer systems for producing high-quality polymeric-bituminous materials

Кемалов, А. Ф.; Kemalov, Ruslan Alimovich

doi:10.1007/s10553-012-0377-5

Cited by 6 publications

(10 citation statements)

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“…The use of bitumen as film-forming base in asphalt materials is justified primarily by the fact that the rate of diffusion of water into the bitumen is 0.83 ⋅ 10 −15 -1.66 ⋅ 10 −15 kg⋅m/(s⋅N) [5]; this causes low solubility of water in the bitumen. As mentioned above, the degree of adhesion between the bitumen and the stone material depends on the chemical nature of the components and, therefore, the variety of types of bitumen and the stone material [4,16].…”

Section: The Effect Of Pfm On Bitumen Performance Propertiesmentioning

confidence: 99%

“…Polycyclic aromatic compounds, resins, and heteroatomic compounds contained in the bitumen do not provide desired adhesion to the mineral part of asphalt concrete. Oxygenated compounds formed during the oxidation of vacuum residues also have little impact on the adhesive properties of bitumen [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Classical cationic surfactants are diphilic structures in which nonpolar part is a long chain hydrophobic alkyl and the polar part (so-called "head") is a positively charged ammonium center, or nitrogen atom 2 Advances in Materials Science and Engineering capable of being protonated in acidic mediums. This fundamental property, diphilicity, is the reason why surfactants are lined up at the interface "bitumen-mineral material" [5][6][7][8][9]. Herewith, the positively charged (hydrophilic) groups are fixed on polar surface of the mineral material and the hydrophobic hydrocarbon chains are fixed in the bitumen.…”

Section: Introductionmentioning

confidence: 99%

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Polyfunctional Modifiers for Bitumen and Bituminous Materials with High Performance

Кемалов

Kemalov

Abdrafikova

et al. 2018

Advances in Materials Science and Engineering

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Over the last decade increase in capacity and the intensity of vehicular traffic has increased manifoldly, including heavy trucks, super singles, and higher tire pressures, resulting in significant increase of dynamic loads on the road surface which in turn lead to high quality requirements for bitumen in order to avoid premature wear and failure of asphalt concrete pavements. One of the possibilities to increase the quality of bitumen is to use special additives and modifiers that can provide a high adhesion to mineral filler and inhibit the aging and degradation processes in the asphalt coating. To achieve this, in the present study composite modifiers based on bisimidazolines derivatives were synthesized. The developed polyfunctional modifier (PFM) of complex action provides enhanced thermal stability, significantly improves the adhesion between bitumen binder and aggregates, and also improves the physical-mechanical properties of the asphalt concrete. Based on the test results it is recommended to use the synthesized samples of the PFM additive with complex action in asphalt mixtures for road paving.

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Section: The Effect Of Pfm On Bitumen Performance Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Polyfunctional Modifiers for Bitumen and Bituminous Materials with High Performance

Кемалов

Kemalov

Abdrafikova

et al. 2018

Advances in Materials Science and Engineering

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“…In Russia, cationic water-bitumen emulsions (WBE) remain a relatively new type of organic binder [1][2][3]. First of all, this is due to the peculiarities of the chemical composition, the structure and the nature of raw materials -heavy oil residues (HOR), the technological conditions of their processing processes, aimed mainly at the production of oxidized (mainly up to 80% by weight), residual, and compounded bitumen.…”

Section: Introductionmentioning

confidence: 99%

“…It should be noted that the main advantages of bitumen as the basis of waterproofing material, in particular bitumen emulsion mastics (BEM), include their high insulating properties with respect to aqueous media. It has been established [2,3] that water absorption of bitumens depends on their hardness, which, when the bitumen is kept in water for a long time, does not exceed 1-3% by weight. Besides, BEM have a lower viscosity in the temperature range from (+5) to 80 °C and a higher degree of adhesion to mineral and metal surfaces.…”

Section: Introductionmentioning

confidence: 99%

Scientific and Practical Aspects of Bitumen Emulsion Mastic Creation

Кемалов¹,

Kemalov²,

Adiko³

et al. 2018

IJET

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It is interesting to consider the possible application as an alternative raw material in the manufacture of bituminous emulsion material residual bitumen grade BNN 80/120, production technology which implies a significant reduction in the proportion of paraffinic hydrocarbons by allocating them in the oil fractions in the evacuation of heavy petroleum residues. As a raw material in the production of BEM they should use the bitumen obtained from the heavy oils of naphthenic aromatic base with a minimum content (up to 2% by weight) [1] of high-molecular straight-chain paraffinic hydrocarbons (P-HC), whose reserves are largely limited and difficult to access. In this regard, the expansion of the raw material base of bitumen production due to the involvement of HOR resinous paraffin base confirms the relevance of the studies. The difficulties in the production of insulating BEMs, that meet the requirements of GOST 30693-2000 on the basis of oxidized HOR paraffin base, are explained by the fact that protective coatings (PK) from such materials with the decrease in the glass transition temperature (point) are characterized by an increased intensity of internal stress (δv) in the volume of BEM, in which the increase of the strength growth intensity (δp) occurs, so premature spontaneous destruction occurs in the process of oxidative destruction, i.e. in the conditions of their operation. This is explained by the fact that at the temperatures above Tst, highly elastic and plastic deformations develop in bitumen, and internal stresses relax easily. With decreasing Tst, the rigidity of bitumen increases sharply, the relaxation processes decelerate, and internal stresses increase substantially.

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Solutions of Long-Chain Alcohols and Surfactants for Enhanced Oil Recovery in High-Temperature Low-Permeability Reservoirs

Zhao

et al. 2014

Chem Technol Fuels Oils

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Study of disperse polymer systems for producing high-quality polymeric-bituminous materials

Cited by 6 publications

References 0 publications

Polyfunctional Modifiers for Bitumen and Bituminous Materials with High Performance

Polyfunctional Modifiers for Bitumen and Bituminous Materials with High Performance

Scientific and Practical Aspects of Bitumen Emulsion Mastic Creation

Solutions of Long-Chain Alcohols and Surfactants for Enhanced Oil Recovery in High-Temperature Low-Permeability Reservoirs

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