Compound rejuvenation of polymer modified asphalt binder

Ma, Tao; Huang, Xiaoming; Hussain, U.

doi:10.1007/s11595-010-0152-6

Cited by 25 publications

(3 citation statements)

References 4 publications

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“…The reduction rate for both low and high PG temperature is almost linear as indicated by high R 2 values in the Fig. 2 (the regression equations are also [24,9] Lei et al [11], and Ma et al [25] who have all demonstrated almost linear decrease in high and low temperature parameters with increasing rejuvenator dose. Fig.…”

Section: Resultsmentioning

confidence: 65%

Determining optimum rejuvenator dose for asphalt recycling based on Superpave performance grade specifications

Zaumanis

Mallick

Frank³

2014

Construction and Building Materials

160

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Section: Resultsmentioning

confidence: 65%

Determining optimum rejuvenator dose for asphalt recycling based on Superpave performance grade specifications

Zaumanis

Mallick

Frank³

2014

Construction and Building Materials

160

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“…It complies with the principle of sustainable development to recycle PMB after its service life ends. Researchers tried to investigate the recyclability of PMB, especially the most widely-used SBS modified bitumen [203][204][205][206][207][208][209]. Although some of these investigations concluded that it is technically feasible to recycle aged PMB by adding rejuvenators or virgin bitumen [203][204][205][206], there is still no widelyaccepted PMB recycling technique available today, which also affects the popularization of PMB in turn.…”

Section: Future Developmentsmentioning

confidence: 99%

Polymer modification of bitumen: Advances and challenges

Zhu

Birgisson

Kringos

2014

European Polymer Journal

754

287

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Abstract. Advances and challenges in the field of bitumen polymer modification for road construction during the last 40 years are reviewed in this paper. The history of bitumen polymer modification is described chronologically. Some popular plastomers and thermoplastic elastomers in bitumen modification are discussed regarding their advantages and disadvantages, including polyethylene (PE), polypropylene (PP), ethylene-vinyl acetate (EVA), ethylene-butyl acrylate (EBA), styrene-butadiene-styrene (SBS), styrene-isoprenestyrene (SIS) and styrene-ethylene/butylene-styrene (SEBS). Although these polymers all improve bitumen properties to some extent, there are still some drawbacks limiting the future development of bitumen polymer modification, such as high cost, low ageing resistance and poor storage stability of polymer modified bitumen (PMB). Researchers attempted various ways to remove these drawbacks. Some technical developments for removing drawbacks are reviewed in this paper, including saturation, sulfur vulcanization, adding antioxidants, using hydrophobic clay minerals, functionalization and application of reactive polymers. The future development of polymers for bitumen modification is analyzed as well. Since it is currently challenging to perfectly achieve all expected PMB properties at the same time, some compromised recommendations are given in this paper, among which greatly enhancing the properties with an acceptably high cost, significantly reducing the cost with relatively poor properties and their combinations. Functionalization is emphasized as a promising way to enhance the properties of currently used polymers and develop new-type polymer modifiers with much greater success in the future. It is also recommended that future research on bitumen polymer modification focuses more on function development towards enhancing: adhesion with aggregates, long-term performance and recyclability.

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“…In terms of partial mixing in the mixing process of recycled asphalt mixture and high-percentage recycled hot-mixture asphalt, Shirodkar et al plotted a mixing curve at different degrees of mixing and observed the influence of partial mixing on the selection of new asphalt grade [12,13]. e utilization of recycling agent is an effective means to improve the content of RAP [14,15]. e recycling agent is a type of low-viscosity oil, which is characterized by low viscosity, low solubility, and high aromatic content.…”

Section: Introductionmentioning

confidence: 99%

Research on Rheological Properties of High‐Percentage Artificial RAP Binder with WMA Additives

Wang

Huang

Qin

et al. 2020

Advances in Materials Science and Engineering

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With the development of pavement recycling technology, the requirement of reclaimed asphalt pavement (RAP) is substantially increasing. Warm-mix recycled asphalt (WMRA) technology has made great progress, which can effectively decrease the working temperature and improve the RAP content. In this study, the rheological properties of recycled binders with incorporation of high-percentage artificial RAP binder (30–70%) were evaluated using two types of warm-mix asphalt (WMA) additives, i.e., polyethylene wax R and surfactant M. The dynamic shear rheometer (DSR) and beam bending rheometer (BBR) tests were conducted on the recycled binders. The results showed that the temperature and frequency played an important role in determining the complex shear modulus of the high-percentage WMRA binders. The dependency of phase angle on frequency increased after the long-term aging. The WMA additive R had a relatively huge impact on the rheological properties of asphalt, which mainly occurred before the PAV aging of recycled asphalt binder; the WMA additive M had no significant impact on the rheological properties of recycled asphalt binder. The WMA additive R enhanced the low-temperature rheology of recycled asphalt binder, while the WMA additive M enhanced the high-temperature rheology of recycled asphalt binder. Both of these types of WMA additives improved the antifatigue performance of recycled asphalt binder. The increased content of RAP binder improved the high-temperature performance and reduced the low-temperature performance of the recycled asphalt binder. However, it had no obvious impact on the fatigue performance. In addition, there was a good linear relation between the RAP binder content and the two indexes of the multiple stress creep recovery (MSCR) test.

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Compound rejuvenation of polymer modified asphalt binder

Cited by 25 publications

References 4 publications

Determining optimum rejuvenator dose for asphalt recycling based on Superpave performance grade specifications

Determining optimum rejuvenator dose for asphalt recycling based on Superpave performance grade specifications

Polymer modification of bitumen: Advances and challenges

Research on Rheological Properties of High‐Percentage Artificial RAP Binder with WMA Additives

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