Effects of Reclaimed Asphalt, Wax Additive, and Compaction Temperature on Characteristics and Mechanical Properties of Porous Asphalt

Ranieri, Vittorio; Berloco, Nicola; Garofalo, Francesca; He, Liang; Intini, Paolo; Kowalski, Karol J.

doi:10.7250/bjrbe.2022-17.575

Cited by 7 publications

(2 citation statements)

References 45 publications

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“…Recycled mixtures outperform conventional asphalt in fatigue cracking resistance, allowing the design of high-quality HMA with up to 50% RAP for preferred fatigue performance. Ranieri et al found similar outcomes for high RA mixes, i.e., 30% RA mixes showed higher indirect tensile strength, stiffness and cohesiveness compared to the reference asphalt mix (Ranieri et al, 2022). Research conducted by Zaumanis et al (2023a) found that PMB mixes up to 30% RA showed identical performance to the virgin mix (0% RA) in terms of crack propagation, rutting resistance, stiffness and fatigue resistance.…”

Section: Performance Considerations When Incorporating High Ra Conten...mentioning

confidence: 87%

Performance Characterisation of High RA Asphalt Mixes – A Laboratory and Field Study

Toth,

Petho,

Rosta

2024

BJRBE

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The research project highlights the significance of incorporating reclaimed asphalt (RA) into hot mix asphalt (HMA) production for sustainable road construction. Despite limited RA utilization in Hungary in the past decades, the project demonstrates the feasibility of manufacturing HMA with significant RA content using advanced technology. The establishment of a capable asphalt plant and the development of laboratory assessments and mix design methodologies laid a solid foundation for future high RA integration in Hungarian road projects. Large-scale production trials confirmed the practicality of integrating high RA content into heavy-duty asphalt mixes with various binder types, including normal bitumen (B), polymer modified binder (PmB), and rubber modified bitumen (GmB). The large-scale validation project described in this paper was based on crucial binder blend designs carried out prior to the trials. Production control and performance-based laboratory testing proved that asphalt mixes can be designed and manufactured with high RA content while maintaining performance standards. Balancing resistance to distress modes like rutting and low-temperature cracking through careful binder blend design and mix design is achievable, even with high RA proportions. Visual assessments and production control indicated the uniformity of high RA content asphalt mixes. The details provided in this paper emphasise the potential for economic and environmental benefits through increased RA utilization in Hungarian road construction.

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Section: Performance Considerations When Incorporating High Ra Conten...mentioning

confidence: 87%

Performance Characterisation of High RA Asphalt Mixes – A Laboratory and Field Study

Toth,

Petho,

Rosta

2024

BJRBE

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“…The methods for producing warm mix asphalt include binder foaming, the use of liquid and solid WMA additives [9,[18][19][20][21][22][23], binder fluxing [24][25][26], direct water foaming [27][28][29][30], the introduction of asphalt mix additives [18,31,32] and combinations of some of the mentioned methods [33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

The Combined Effects of Additives on the Conventional and High-Temperature Performance Properties of Warm Mix Asphalt Binders

Chomicz-Kowalska,

Bartos,

Maciejewski

et al. 2023

Materials

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The present study investigates the effects of the simultaneous use of two additives, an organosilane warm mix asphalt (WMA) agent and a grade-bumping polyolefin compound, on the conventional and high-temperature performance properties of a paving grade 50/70 bitumen and a polymer-modified 45/80-55 bitumen. The WMA agent and polyolefin additive were introduced to the binders at rates of up to 0.3% and 2%, respectively. The base asphalt binders and their blends with the additives were tested before and after aging in a rolling thin film oven test at a temperature of 143 °C. The effects of the investigated additives were found to be dependent on the type of base binder and its aging state. It was generally observed that the WMA additive decreased the performance of the asphalt binders and limited the effects of the other additive, which increased the high-temperature stiffness and non-recoverable compliance of the blends. This interaction amounted to as much as an approx. 20% decrease in high-temperature stiffness and non-recoverable compliance of the binders. The additives caused a small increase in the elasticity of the binders and improved their creep performance when measured in multiple stress creep recovery tests.

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Effect of Laboratory Accelerated Aging on the Mechanical Performance of Asphalt Mixtures Containing Reclaimed Asphalt Pavement

Nouali,

Dony,

Carter

2024

14th International Conference on Asphalt Pavements ISAP2024 Montreal

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Effects of Reclaimed Asphalt, Wax Additive, and Compaction Temperature on Characteristics and Mechanical Properties of Porous Asphalt

Cited by 7 publications

References 45 publications

Performance Characterisation of High RA Asphalt Mixes – A Laboratory and Field Study

Performance Characterisation of High RA Asphalt Mixes – A Laboratory and Field Study

The Combined Effects of Additives on the Conventional and High-Temperature Performance Properties of Warm Mix Asphalt Binders

Effect of Laboratory Accelerated Aging on the Mechanical Performance of Asphalt Mixtures Containing Reclaimed Asphalt Pavement

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