Moisture susceptibility and fatigue performance of asphalt binder modified by bone glue and coal fly ash

Junaid, Muhammad; Peng, Tianyi; Zhang, Weiguang; Cheng, Hanglin; Haroon, Waqas; Abdul, Samad; Chen, Kunwei; Zhou, Yang

doi:10.1016/j.conbuildmat.2021.125135

Cited by 8 publications

(2 citation statements)

References 36 publications

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“…It is known that most asphalt binders have PI values in the range of −2 to +2. Additionally, as the PI value of asphalt increases, the temperature susceptibility decreases [35,36]. In addition, the flexibility and thixotropy of the asphalt binders increased as PI increased [33].…”

Section: Penetrationmentioning

confidence: 99%

Preparation of Wax-Based Warm Mixture Additives from Waste Polypropylene (PP) Plastic and Their Effects on the Properties of Modified Asphalt

Zhou

Li²,

Wang³

et al. 2022

Materials

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The production of high-performance, low-cost warm mix additives (WMa) for matrix asphalt remains a challenge. The pyrolysis method was employed to prepare wax-based WMa using waste polypropylene plastic (WPP) as the raw material in this study. Penetration, softening point, ductility, rotational viscosity, and dynamic shear rheological tests were performed to determine the physical and rheological properties of the modified asphalt. The adhesion properties were characterized using the surface free energy (SFE) method. We proved that the pyrolysis temperature and pressure play a synergistic role in the production of wax-based WMa from WPPs. The product prepared at 380 °C and 1.0 MPa (380-1.0) can improve the penetration of matrix asphalt by 61% and reduce the viscosity (135 °C) of matrix asphalt by 48.6%. Furthermore, the modified asphalt shows favorable elasticity, rutting resistance, and adhesion properties; thus, it serves as a promising WMa for asphalt binders.

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Section: Penetrationmentioning

confidence: 99%

Preparation of Wax-Based Warm Mixture Additives from Waste Polypropylene (PP) Plastic and Their Effects on the Properties of Modified Asphalt

Zhou

Li²,

Wang³

et al. 2022

Materials

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“…Mistry et al through experiments found that an asphalt mixture using fly ash as the filler had higher Marshall stability values and a lower optimal asphalt content [10]. Xie et al found that the surface of fly ash used as a filler can improve the indirect tensile strength and tensile strength ratio of asphalt mixtures and increase the fatigue life of asphalt pavement [11][12][13]. Suched et al found that fly ash can improve the strength, stiffness, and anti-stripping properties of asphalt mixtures [14].…”

Section: Introductionmentioning

confidence: 99%

Study on the Rheological Properties of Fly Ash Modified Asphalt Mastics

Xing

Han²,

Liu³

et al. 2023

Coatings

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Fly ash is one of the industrial waste residues with significant emissions in China, and its rational utilization has important economic significance and environmental value. Due to the similarity in properties between fly ash and limestone mineral powder, it is possible to replace the mineral powder filler in asphalt concrete with fly ash. This article explored the feasibility of replacing the mineral powder with fly ash in an asphalt mixture through the study of fly-ash-modified asphalt mastic. Firstly, the microstructures and elemental compositions of fly ash and mineral powder were studied using scanning electron microscopy (SEM) and X-ray diffraction (XRD) tests. Then, the rheological properties of asphalt mastics with different fillers were studied using dynamic shear rheological (DSR) tests. The results show that when the stress level was 3.2 kPa, the change in the Jnr value was different from that at 0.1 kPa, indicating that after increasing the stress level, the Jnr of fly ash asphalt mastic was smaller, and fly ash can improve the high-temperature creep performance of asphalt mastic. Replacing mineral powder with fly ash can improve the high-temperature rheological properties of asphalt mastic, but this damages the elastic and crack resistance properties of the asphalt mastic. In practical applications, partial substitution of mineral powder can be considered for the preparation of an asphalt mixture.

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