Rheological Properties of Bitumen with Powder Rubber Modifier Obtained by High-Temperature Shear Grinding

Gorbatova, V. N.; Dudareva, T. V.; Красоткина, И. А.; Никольский, В.Г.; Naumova, Yulia A.

doi:10.1007/978-3-030-72404-7_46

Lecture Notes in Civil Engineering

2021

DOI: 10.1007/978-3-030-72404-7_46

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Rheological Properties of Bitumen with Powder Rubber Modifier Obtained by High-Temperature Shear Grinding

V. N. Gorbatova

T. V. Dudareva

И. А. Красоткина

et al.

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Cited by 5 publications

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“…It was suggested that under dynamic conditions, cracking can occur at higher temperatures than predicted by the results of static tests. It was also noted that dynamic glass transition is absent up to temperature −30°C on the Cole-Cole diagrams of rubber-bitumen binders, containing 12.5% of powder elastomeric modifier, obtained by high temperature shear grinding [22].…”

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Study of the Influence of SBS and APDDR on the Low-Temperature Properties of Road Bitumen

Gorbatova

Dudareva

Красоткина

et al. 2021

KEM

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A comparative assessment of the effect of two modifiers on the low-temperature properties of BND 90/130 bitumen was investigated using Asphalt Binder Cracking Device (ABCD test) and Dynamic Shear Rheometer (DSR 4-mm test). These modifiers are styrene-butadiene-styrene block copolymer (SBS) and active powder of discretely devulcanized rubber (APDDR) - powder elastomeric modifier obtained by high-temperature shear grinding of waste tire crumb rubber. ABCD results of RTFO-aged samples showed clear and gradual decrease of the ABCD cracking temperature (improvement) for all BC as the modifier concentration increases. It is noteworthy that the Bitumen Composites (modified bitumens) were cracking at higher strain and fracture stress values compared to neat bitumen. Results of DSR-4 mm test showed a decrease in the complex shear modulus (G*), storage modulus (G¢) and loss modulus (G²) BC compared to the neat bitumen. It is shown that bituminous composites have no maximum on the Cole-Cole diagram (dynamic vitrification) at T = -28°C which is observed in the neat bitumen.

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confidence: 99%

Study of the Influence of SBS and APDDR on the Low-Temperature Properties of Road Bitumen

Gorbatova

Dudareva

Красоткина

et al. 2021

KEM

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“…Using AFM to observe the microstructure of modified asphalt is helpful to further study and improve the performance of asphalt.Some experts and scholars have found that the viscosity of the binder will increase after adding CR. Microscopic manifestations are centered on bee-shaped structures, which increase in number and decrease in size, leading to improved durability of the road[101]. Researchers have also studied the rheological, morphological, and physical changes of asphalt binders with different CR content using wet interaction.…”

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Application of Atomic Force Microscopy as Advanced Asphalt Testing Technology: A Comprehensive Review

et al. 2022

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In the past three decades, researchers have engaged in the relationship between the composition, macro performance, and microstructure of asphalt. There are many research results in the use of atomic force microscopy (AFM) to study the microstructure and related mechanisms of asphalt. Based on previous studies, the performance of asphalt from its microstructure has been observed and analyzed, and different evaluation indices and modification methods have been proposed, providing guidance toward improving the performance of asphalt materials and benefiting potential applications. This review focuses on the typical application and analysis of AFM in the study of the aging regeneration and modification properties of asphalt. Additionally, this review introduces the history of the rheological and chemical testing of asphalt materials and the history of using AFM to investigate asphalt. Furthermore, this review introduces the basic principles of various modes of application of AFM in the microstructure of asphalt, providing a research direction for the further popularization and application of AFM in asphalt or other materials in the future. This review aims to provide a reference and direction for researchers to further popularize the application of AFM in asphalt and standardize the testing methods of AFM. This paper is also helpful in further exploring the relationship between the microstructure and macro performance of asphalt.

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Rubber and Rubber–Polymer Modifiers of Asphalt Concrete Mixes Prepared by High-Temperature Shear Grinding. Part 2. Methodology of Evaluation of Performance of Modifiers

et al. 2021

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Rheological Properties of Bitumen with Powder Rubber Modifier Obtained by High-Temperature Shear Grinding

Cited by 5 publications

References 16 publications

Study of the Influence of SBS and APDDR on the Low-Temperature Properties of Road Bitumen

Study of the Influence of SBS and APDDR on the Low-Temperature Properties of Road Bitumen

Application of Atomic Force Microscopy as Advanced Asphalt Testing Technology: A Comprehensive Review

Rubber and Rubber–Polymer Modifiers of Asphalt Concrete Mixes Prepared by High-Temperature Shear Grinding. Part 2. Methodology of Evaluation of Performance of Modifiers

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