Assessing the structure of recycled polyethylene-modified bitumen using the calorimetry method

Okhotnikova, E. S.; Ganeeva, Yu. M.; Frolov, I. N.; Firsin, A. A.; Yusupova, T. N.

doi:10.1007/s10973-019-08172-1

Cited by 11 publications

(5 citation statements)

References 21 publications

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“…In phase one, asphaltene-rich substances are created, and in the other, polymer-rich substances are formed as a result of the absorption of the light-weight molecules of asphalt by R-LDP molecules. Physically, comprising R-LDP resulted in higher viscosity of asphalt binder following the chemical reactions [8]. When hardness of R-LDP polymer plays its role, asphalt binder thickens and raises the asphalt film thickness, hence, better aggregate coating.…”

Section: Determination Of Oacmentioning

confidence: 99%

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Durability assessment of open-graded friction course using a sustainable polymer

Al-Busaltan

Al-Yasari

Al-Jawad

et al. 2020

Int. J. Pavement Res. Technol.

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Open-graded friction course (OGFC) asphalt mixture, usually used to construct porous pavements, represents one of the materials supporting low-impact development (LID) philosophy due to its use of coarse aggregate gradation. Using such mixtures brings several benefits related to safety, environment and economy. Alas, coarse, open-graded skeleton of OGFC mixtures is prone to failure, particularly raveling and stripping. Continuous traffic loading and the environmental impacts give hand in hand to further increase the potential for failure, hence higher pavement maintenance and rehabilitation costs. Application of different types of modifiers has proved effective in mitigating failure potential. The most common modifiers are polymers, fibers and anti-stripping agents. Aiming at minimizing the costs and maximizing the lifespan while considering sustainability, the study was to investigate the effect of using a recycled stabilizing material as an asphalt modifier on the performance of OGFC asphalt mixtures. Recycled Low-Density Polyethylene (R-LDP) was adopted in this investigation. Changes in mixture air void, porosity, draindown, permeability, rut depth, moisture damage and abrasion loss were observed to evaluate the effect. Compared with unmodified asphalt samples, R-LDP modification increased mixture air void, porosity and permeability by 15%, 10% and at least 40%, respectively. Also, it noticeably contributed to reducing rut depth, moisture damage and abrasion loss (both unaged and aged) by 31%, 20% and at least 40%, respectively. More significantly, it almost eliminated the draindown problem. Incorporating R-LDP proved effective in upgrading OGFC mixture properties to an acceptable level required by most specifications.

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Section: Determination Of Oacmentioning

confidence: 99%

“…Use of different modifiers, such as polymers (e.g. plastomers or elastomers) [7,8], fibers (e.g. cellulose, polyester or mineral fibers) [9,10] and anti-stripping additives (e.g.…”

Section: Introductionmentioning

confidence: 99%

Durability assessment of open-graded friction course using a sustainable polymer

Al-Busaltan

Al-Yasari

Al-Jawad

et al. 2020

Int. J. Pavement Res. Technol.

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“…Among all polyolefin, the scientific community has directed particular attention toward polyethylene (PE) and polypropylene (PP). 13,15,[17][18][19][20][22][23][24][25]27,28,[32][33][34][36][37][38][39][40][41][42][43][44][45][46][47][48][49] These two thermoplastic semicrystalline polyolefins represent the globally most produced plastic materials employed for the massive production of tools of any sort. Given the relatively low melting temperatures (<170 C) and high thermal stability, these materials well fit in the production protocols of MBs from a practical point of view.…”

Section: Introductionmentioning

confidence: 99%

“…Recyclable and waste materials do not only lead to a consistent reduction of the modified bitumen (MB) overall costs, but provide benefits at an environmental level too, and their application has been largely incentivized 1,9,12–30 . For these reasons, waste plastics are nowadays considered some of the most interesting replacements of traditional polymers and extensively investigated worldwide 9,12,13,15,17–48 . However, unless other waste materials, plastics are often mixtures of unknown composition, and a better understanding of the effects of each type of polyolefin is needed.…”

Section: Introductionmentioning

confidence: 99%

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Variation of internal structure and performance of polyethylene‐ and polypropylene‐modified bitumen during blending process

Lanotte

2020

J of Applied Polymer Sci

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Linear-viscoelastic characteristics and performance are evaluated throughout the blending process of polyethylene and polypropylene with bitumen. Results indicate that type, form and percentage of polyolefin play a significant role in the time evolution of the composite's mechanical response. Toluene extraction of modified bitumen revealed, for the first time, the formation of a sponge-like polymer network. Visual inspection and Fourier transform infrared analysis of the polyolefins recovered after extraction indicates higher affinity of the polyethylene with bitumen in agreement with the rheological test results. The use of polypropylene is discouraged if rutting performance is a concern, and polyethylene in both pellets and powder form at 4%, and after 210 min of blending produces a modified bitumen with acceptable performance.

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Thermal and structural characterization of bitumen by modulated differential scanning calorimetry

Okhotnikova

Ganeeva

Frolov

et al. 2020

J Therm Anal Calorim

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Assessing the structure of recycled polyethylene-modified bitumen using the calorimetry method

Cited by 11 publications

References 21 publications

Durability assessment of open-graded friction course using a sustainable polymer

Durability assessment of open-graded friction course using a sustainable polymer

Variation of internal structure and performance of polyethylene‐ and polypropylene‐modified bitumen during blending process

Thermal and structural characterization of bitumen by modulated differential scanning calorimetry

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