Analysis of the Performance Improvement Mechanism of Foamed Rubber Asphalt Based on Micro and Macro Perspectives DOI Open Access

Bin Ren,

Wei Wang, Zhengtang Guo

и другие.

Coatings, Год журнала: 2024, Номер 14(12), С. 1541 - 1541

Опубликована: Дек. 9, 2024

Foamed rubber asphalt has attracted wide attention in cold-recycled pavement projects due to its excellent performance, strong construction performance and resource conservation, but the mechanism of improvement after foaming is still unclear. In order explore difference before foaming, this study systematically analyzed from nano, micro macro perspectives. Molecular dynamics simulation results show that density modulus decrease foaming. After glass transition temperature decreased by 4.4 K, free volume fraction 4.7%, which indicated low-temperature toughness was enhanced. The also illustrate enhancement asphalt. Rubber are physically mixed do not undergo chemical reactions. However, makes particles more evenly distributed, helping improve fatigue properties Macroscopic test high-temperature foamed reduced, while improved. molecular consistent with experimental results, providing a comprehensive explanation for performance.

Язык: Английский

Study on the effect of limestone replacement by steel slag on the interface interaction between asphalt and aggregate DOI
Chao Zhang, Huanan Yu, Guoping Qian

и другие.

Construction and Building Materials, Год журнала: 2025, Номер 471, С. 140709 - 140709

Опубликована: Март 12, 2025

Язык: Английский

Процитировано

0

Multiscale study on the deterioration of bitumen, bitumen-aggregate interface and asphalt mixture under the coupling effect of moisture and high temperature DOI
Xuemei Zhang,

Lingxi Zhou,

Rong Luo

и другие.

Materials and Structures, Год журнала: 2025, Номер 58(5)

Опубликована: Май 16, 2025

Язык: Английский

Процитировано

0

Effect of moisture diffusion on the properties of rubber-modified asphalt and aggregate interface considering multiple influencing factors DOI
Siting Chen, Lei Lu, Ya Gao

и другие.

Construction and Building Materials, Год журнала: 2024, Номер 449, С. 138358 - 138358

Опубликована: Сен. 19, 2024

Язык: Английский

Процитировано

2

Analysis of foaming mechanism and adhesion of foam rubberised asphalt from the perspective of molecular scale DOI
Kun Xiong, Yinzhang He, Jiupeng Zhang

и другие.

International Journal of Pavement Engineering, Год журнала: 2024, Номер 25(1)

Опубликована: Окт. 14, 2024

Rubberised asphalt faces challenges such as viscosity and construction energy consumption. These problems can be ameliorated by the use of foaming technology. However, existing studies lack a microscopic-level understanding mechanism interfacial properties foam rubberised asphalt. Therefore, this study used molecular dynamics simulation methods to establish models interface models. The were analysed from aspects model density, change, agglomeration behaviour adhesion work. Results revealed that increased temperature water consumption caused difficulties in volumetric compression model. diffusion aggregation molecules altered distribution other model, effectively reducing without affecting chemical structure. In contribute migration mineral surface, which exists two forms: aggregating within diffusing interface. enhance electrostatic interaction between minerals. due random nature molecule diffusion, it is difficult form regular layer at interface, leads failure

Язык: Английский

Процитировано

2

Spatiotemporal Moisture Field DOI Creative Commons
Ondřej Fuciman, Libor Matějka

Buildings, Год журнала: 2024, Номер 14(11), С. 3510 - 3510

Опубликована: Ноя. 2, 2024

For monitoring capillary moisture conduction, the most important parameter is conductivity coefficient, which a material characteristic; however, its use in practical calculations not very common. further development field of liquid propagation, an automated measuring apparatus has been developed and granted European patent. Its essence lies detecting water content based on well-known physical phenomenon: electromagnetic radiation microwave range. The determination spatiotemporal first fundamental step for describing transportation phenomena. thus created allows viewing one parameters phenomena as function moisture. presence building materials can significantly affect their properties, such mechanical or thermal–technical characteristics. This may lead to unacceptable consequences, might only manifest after certain period time. In case multi-layered structures, transfer from another. Therefore, it essential address this process. advantage software solution described by methodology open communication protocol form synchronized array, common typical applications type. principle separating hardware modules also unusual devices type, requires independent each module with control software. Mutual handled exclusively at level, making possible modify, optimize, parameterize procedures needed. Upon closer examination wetting curves various materials, anomalies were revealed some structures. be advantageously utilized research newly composite materials. assembled system instruments, integration, provide foundation application methods determining parameterization individual processes, well access data, optimization methodology, entirely different characteristics require approach, will certainly contribute advancement science area. Currently, work being followed extensive studies, yet published authors, focusing evaluate coefficient dependent material’s mass content. Their specific mathematical programming approaches due significant volume data involved.

Язык: Английский

Процитировано

0

Analysis of the Performance Improvement Mechanism of Foamed Rubber Asphalt Based on Micro and Macro Perspectives DOI Open Access

Bin Ren,

Wei Wang, Zhengtang Guo

и другие.

Coatings, Год журнала: 2024, Номер 14(12), С. 1541 - 1541

Опубликована: Дек. 9, 2024

Foamed rubber asphalt has attracted wide attention in cold-recycled pavement projects due to its excellent performance, strong construction performance and resource conservation, but the mechanism of improvement after foaming is still unclear. In order explore difference before foaming, this study systematically analyzed from nano, micro macro perspectives. Molecular dynamics simulation results show that density modulus decrease foaming. After glass transition temperature decreased by 4.4 K, free volume fraction 4.7%, which indicated low-temperature toughness was enhanced. The also illustrate enhancement asphalt. Rubber are physically mixed do not undergo chemical reactions. However, makes particles more evenly distributed, helping improve fatigue properties Macroscopic test high-temperature foamed reduced, while improved. molecular consistent with experimental results, providing a comprehensive explanation for performance.

Язык: Английский

Процитировано

0