Investigation on performance of mineral-oil-based rejuvenating agent for aged high viscosity modified asphalt of porous asphalt pavement

Xu, Bin; Ding, Runduo; Yang, Zhihao; Sun, Yiren; Zhang, Jiancheng; Lu, Kaiji; Cao, Dongwei; Gao, Aodong

doi:10.1016/j.jclepro.2023.136285

Cited by 21 publications

(3 citation statements)

References 2 publications

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“…On the other hand, the mechanical properties and durability of recycled drainage asphalt mixtures were investigated at different old material mixing levels (15–93%) [ 13 ]. Xu et al [ 14 ] developed a naphthenic asphalt rejuvenator for drainage asphalt pavements, which could improve the permeability and ductility of aged high-viscosity asphalt; however, the adhesion between asphalt and aggregate is insufficient, and asphalt can easily peel off from the surface of the aggregate in a humid environment. Frigio et al [ 13 ] found that the use of an asphalt-based recycling agent could improve the strength and flexibility of recycled drainage asphalt mixtures, but the enhancement of its resistance to water damage was very limited.…”

Section: Introductionmentioning

confidence: 99%

Adhesion Properties of Recycled High-Viscosity Asphalt–Aggregate Interface under Dynamic Water Erosion

Zhao,

Song,

Wei

et al. 2023

Materials

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The drainage of asphalt pavement requires the use of a large amount of high-viscosity-modified asphalt, which faces the service environment under dynamic water erosion. The feasibility of recycling high-viscosity-modified asphalt should be investigated to facilitate sustainable infrastructure construction. This study used ultrasonic equipment to simulate dynamic water erosion test conditions and tested the adhesion performance of different types of recycled high-viscosity asphalt at various environmental temperatures. The adhesion energy index and microstructure of recycled high-viscosity asphalt were analyzed using the contact angle test and AFM test. The results demonstrate that the higher the environmental temperature, the worse the anti-stripping performance of recycled high-viscosity asphalt. From the perspective of adhesion performance indicators, a 6% recycling agent dosage is more conducive to restoring the performance of aged high-viscosity -modified asphalt. The AFM test showed that the microstructure of high-viscosity -modified asphalt represented significant changes with an increase in the recycling agent content, and the change in the adhesion force of recycled high-viscosity -modified asphalt was consistent with the results of macroscopic adhesion performance tests. This study illustrates the applicability of implementing regeneration technology for the recycling of aged drainage asphalt pavement.

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Section: Introductionmentioning

confidence: 99%

Adhesion Properties of Recycled High-Viscosity Asphalt–Aggregate Interface under Dynamic Water Erosion

Zhao,

Song,

Wei

et al. 2023

Materials

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“…Zhao et al [25] investigated the impact of crumb rubber and reclaimed asphalt pavement on the viscoelastic properties of asphalt mixtures. Additionally, recent research [26][27][28][29][30] has conducted various studies on green pavements, rejuvenating agents, and rubberized asphalt mixtures. These studies collectively contribute significantly to advancing research into asphalt pavement, addressing aspects of performance, sustainability, and material innovation.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Viability of Waste Plastic Aggregate in Stone-Modified Asphalt Concrete Mix for Bus Rapid Transit Pavement Maintenance

Ohm,

Kim,

Kim

et al. 2023

Buildings

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This research takes on a scientific problem originating from the pervasive deterioration observed in the pavements of Bus Rapid Transit (BRT) systems, which presents formidable challenges to their durability and imposes significant financial burdens on BRT organizations. While wear and tear on BRT pavements is a widely recognized concern, there exists a pronounced deficiency in sustainable solutions to address this issue comprehensively. This study endeavored to bridge this scientific gap by exploring the option of incorporating waste plastic aggregate (WPA) and recycled asphalt pavement (RAP) into the pavement material. The series of comprehensive investigations commenced with an assessment of modified binders. We identified a 25% extracted RAP binder as the most suitable candidate. Our research next determined that a 4% WPA content offers optimal results when used as an aggregate replacement in a stone-modified asphalt concrete mix, which is further refined with a 13 mm nominal maximum aggregate size (NMAS) gradation, resulting in superior performance. Under double-load conditions of the Hamburg Wheel Tracking test, rutting in the 10 mm NMAS mixture rapidly increased to 9 mm after 12,400 HWT cycles, while the 13 mm NMAS mixture showed a more gradual ascent to the same critical rutting level after 20,000 HWT cycles (a 61% increase). Real-world application at a designated BRT station area in Seoul reinforced the findings, revealing that the use of 13 mm NMAS with 4% WPA and RAP significantly improved performance, reducing rutting to 75 µm and enhancing pavement resilience. This configuration increased Road Bearing Capacity (RBC) to 5400 MPa at the center zone, showcasing superior load-bearing capability. Conversely, the 10 mm NMAS mixture without RAP and WPA experienced severe rutting (220 µm) and a 76% reduction in RBC to 1300 MPa, indicating diminished pavement durability. In general, this research highlights the need for innovative solutions to address BRT pavement maintenance challenges and offers a novel, environmentally friendly, and high-performance alternative to traditional methods.

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“…et al used a rotary compactor to simulate the effect of heavy loads on single-layer and double-layer drainage asphalt pavements. The height changes of the specimens of single-layer and double-layer drainage asphalt pavement mixtures were observed before and after the experiment, and the permeation parameters of the specimens before and after the experiment were measured and recorded [11]. The results showed that after being compacted by the rotary compactor, the height of all specimens decreased and the void space decreased.…”

Section: Introductionmentioning

confidence: 99%

Drainage Performance of Long Longitudinal Slope and High Safety Permeable Asphalt Pavement

Liu,

Xu,

Wang

et al. 2023

Buildings

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Permeable asphalt pavement refers to an asphalt mixture layer with an air void content of more than 18% and internal water permeability and drainage capabilities that can quickly drain away water on the road surface, improve rainy day travel safety, and improve ride comfort. This paper aims to explore the optimal asphalt mixture design for long longitudinal slope pavement (referred to as the FAM mixture). By using CT scanning technology to analyze the air void content of different rotated and compacted asphalt mixture specimens and extensively testing and evaluating the performance of permeable pavement mixtures, the following conclusions are drawn: Based on the research philosophy of functional integration, a new asphalt mixture gradation suitable for long longitudinal slope roads is proposed, with the optimal key factor composition being: 0.075 mm passing rate of 7%, 2.36 mm passing rate of 20%, 9.5 mm passing rate of 55%, and an oil-stone ratio of 4.8%. The FAM mixture was divided into three parts for air void analysis, with the upper part having a slightly higher air void content than the lower part. The air void distribution diagram of the FAM mixture is concave, with higher air void rate curves on both sides and a lower middle curve. Through dynamic modulus testing, the strength requirement for the road asphalt mixture in the pavement structure design was evaluated. It was found that at high temperature conditions (50 °C), the minimum dynamic modulus value of the FAM mixture was 323 MPa, with a peak value of 22,746 MPa at a temperature of −10 °C and a frequency of 25 HZ. The dynamic modulus value at high temperature conditions is lower than at low temperature conditions, while the dynamic modulus value at high frequency conditions is higher than at low frequency conditions. This study provides useful information and experimental data for the design of new asphalt mixtures for long longitudinal slope roads and has conducted in-depth research on the air void distribution and performance of the mixture, providing strong support for related research fields and practical applications.

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Investigation on performance of mineral-oil-based rejuvenating agent for aged high viscosity modified asphalt of porous asphalt pavement

Cited by 21 publications

References 2 publications

Adhesion Properties of Recycled High-Viscosity Asphalt–Aggregate Interface under Dynamic Water Erosion

Adhesion Properties of Recycled High-Viscosity Asphalt–Aggregate Interface under Dynamic Water Erosion

Assessing the Viability of Waste Plastic Aggregate in Stone-Modified Asphalt Concrete Mix for Bus Rapid Transit Pavement Maintenance

Drainage Performance of Long Longitudinal Slope and High Safety Permeable Asphalt Pavement

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