Evaluation on the Adhesion Property of Recycled Asphalt Based on the Multi-Scale Experiments DOI Creative Commons
Peng Yin, Fei Liu, Zihan Li

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(8), P. 2365 - 2365

Published: July 31, 2024

The adhesion property has consistently been a critical focus in the utilization of recycled asphalt (RA). This research aimed to elucidate mechanisms influencing RA at various scales. Specimens base (BA), aged (AA), and were systematically prepared. impacts aging rejuvenators on nano assessed using multi-scale testing methods. findings revealed that adversely affected adhesive interaction between BA aggregate, whereas application substantially improved this effect. When compared acidic aggregate granite, alkaline limestone demonstrated superior properties with RA. Moreover, correlation analysis affirmed mechanical across scales evaluated trends aggregates.

Language: Английский

Adhesion Characteristics of an Asphalt Binder–Aggregate Interface Based on Molecular Dynamics DOI Open Access
Hao Xiang,

Zhengxing WANG,

Mingxiao Deng

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(5), P. 981 - 981

Published: Feb. 23, 2025

To investigate the adhesion properties of asphalt binder-aggregate interfaces, contact angle tests were performed on base, aged, and SBS# with limestone basalt aggregates. A molecular dynamics simulation model was established to analyze interfacial characteristics. The results indicate good consistency between experimental findings. exhibited superior surface free energy compared base asphalt, whereas aging reduced performance. aggregates is closely related their compositions. When moisture penetrates mixture, significantly increases, that basalt, exhibiting stronger than asphalt. modifier enhanced aggregates, thereby providing resistance damage. findings this study possess referential value for selection, modification, performance optimization pavement materials.

Language: Английский

Citations

1
Mechanisms for improving the adhesion of oil-rich RAP fine aggregate asphalt mortars to aggregates DOI
Yuchao Gao, Xin Yu, Hong Zhang

et al.

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 435, P. 136785 - 136785

Published: June 1, 2024

Language: Английский

Citations

4
Value-added recycling of plant waste for modification of asphalt pavement used aggregates: Interface enhancement and carbon sequestration DOI
Dan Zhao, Jiwang Jiang, Xingyu Gu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159822 - 159822

Published: Jan. 1, 2025

Language: Английский

Citations

0
Study on the Road Performance of Terminal Carboxylated Nitrile Rubber-Modified Epoxy Asphalt Permeable Concrete DOI Open Access
Wei Shan, Sheng Zhang

Materials, Journal Year: 2025, Volume and Issue: 18(8), P. 1691 - 1691

Published: April 8, 2025

In cold regions, the overlay effect often leads to pavement and subgrade distresses, severely compromising functionality of roads infrastructure. To address this issue, study proposes a solution involving permeable pavements roadbed structures. However, application materials in regions remains significant challenge. Building on previous research, paper introduces novel material with exceptional mechanical temperature performance: terminal carboxylated nitrile rubber-modified epoxy asphalt. Specifically, properties, viscosity, high-temperature rutting resistance, low-temperature cracking modification mechanisms five asphalt mixtures varying rubber contents were investigated. Additionally, high-temperature, low-temperature, water stability properties three types porous concrete compared. The results demonstrate that incorporation significantly enhances resistance without altering curing time. Although itself decreases, are improved. This improvement is attributed chemical reaction between resin, which generates prepolymer containing new substances forms stable sea-island structure. structure promotes more homogeneous distribution matrix, thereby increasing cohesive strength toughness

Language: Английский

Citations

0
Investigation of the Properties of High-Viscosity Modified Asphalt Binder under Hygrothermal Environments DOI Open Access

Mingliang Xing,

Guimin Li,

Xiaowei Zhou

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(12), P. 2869 - 2869

Published: June 12, 2024

High-viscosity modified asphalt binder (HVMA) is used widely as a polymer-modified in porous pavement because it can improve the cohesiveness of mixture. However, high voidage mixture, HVMA vulnerable to aging induced by temperature, oxygen, water, sunlight, and other climatic conditions, which degrades performance pavement. The properties are affected adversely effects hygrothermal environments megathermal rainy areas. Therefore, essential study characteristics under influence promote its application high-viscosity modifier. A cycle test (HCAT) was designed simulate when rainwater kept inside after rainfall One kind base bitumen three kinds (referred SBS, A, B, respectively) were selected this study. Short-term tests, cycling long-term tests performed on binder. Fourier-transform infrared spectroscopy (FTIR), thermo-gravimetric analysis (TGA), dynamic shear rheological (DSR) evaluate binders micro macro scales. By comparing index variations four before aging, environment studied. It found that expedited decomposition polymer formation carbonyl groups compared with TFOT PAV test, TGA confirmed further. Moreover, thermal stability samples improved HCAT. In addition, master curves complex modulus showed cycles made high-temperature rutting resistance increase significantly. All results above verified effect could accelerate shorten service life.

Language: Английский

Citations

1
A New Water Film Depth Prediction Model for Pavement Surface Drainage DOI Creative Commons
Kang Zhao, Qiong Zhou,

Enqiang Zhao

et al.

Infrastructures, Journal Year: 2024, Volume and Issue: 9(3), P. 36 - 36

Published: Feb. 21, 2024

The prediction of the water film depth (WFD) on road surface can help with skid resistance research and reduce risk associated driving rainy days. At present, there are many empirical analytical models based drainage length, slope, rainfall intensity other parameters. Considering influence runoff starting from Reynolds number formula flow, a new WFD calculation that considers movement state laminar flow is derived. results show changing trends various parameters in model (drainage intensity, slope) affecting consistent those existing model. It also found initial depth, speed rainwater, angle have little impact WFD. predicted value has suitable matching degree compared classical model, which provides approach to depth.

Language: Английский

Citations

0
Evaluation on the Adhesion Property of Recycled Asphalt Based on the Multi-Scale Experiments DOI Creative Commons
Peng Yin, Fei Liu, Zihan Li

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(8), P. 2365 - 2365

Published: July 31, 2024

The adhesion property has consistently been a critical focus in the utilization of recycled asphalt (RA). This research aimed to elucidate mechanisms influencing RA at various scales. Specimens base (BA), aged (AA), and were systematically prepared. impacts aging rejuvenators on nano assessed using multi-scale testing methods. findings revealed that adversely affected adhesive interaction between BA aggregate, whereas application substantially improved this effect. When compared acidic aggregate granite, alkaline limestone demonstrated superior properties with RA. Moreover, correlation analysis affirmed mechanical across scales evaluated trends aggregates.

Language: Английский

Citations

0