Polymer modified bitumen: Rheological properties and structural characterization

Rossi, Cesare Oliviero; Spadafora, Assunta; Teltayev, Bagdat; Izmailova, Galiya; Amerbayev, Yerik; Bortolotti, Villiam

doi:10.1016/j.colsurfa.2015.02.048

Cited by 114 publications

(23 citation statements)

References 12 publications

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“…A more detailed description can be found in [4,122,186]. From a thermal and rheological point of view bitumen/PPA blends [185][186][187][188] have shown an increased high-temperature performance with no significant changes in the low-temperature ones. It has been also found that PPA can improve the storage stability of PmBs.…”

Section: Ppa-based Techniquesmentioning

confidence: 99%

Bitumen and Bitumen Modification: A Review on Latest Advances

et al. 2019

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This synthesis explores the state-of-the-knowledge and state-of-the-practice regarding the latest updates on polymer-modified bitumens (PmBs). The information in this study was gathered from a thorough review of the latest papers in the literatures related to modified bituminous materials, technologies, and advances. For this purpose, the paper is presented in two principle sections. In the first part, the bitumen itself is investigated in terms of chemical structure and microstructural systems. In the second part, the paper focuses on bitumen modification from different aspects for assessing the effectiveness of the introduced additives and polymers for enhancing the engineering properties of bitumen in both paving and industrial applications. In conclusion, the knowledge obtained in this study has revealed the importance of the chemical composition of base bitumen for its modification. It can be declared that while some polymers/additives can improve one or some aspects of neat bitumen properties, they can lead to compatibility problems in storage and production. In this respect, several studies showed the effectiveness of waxes for improving the compatibility of polymers with bitumen in addition to some benefits regarding warm mix asphalt (WMA) production.

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Section: Ppa-based Techniquesmentioning

confidence: 99%

Bitumen and Bitumen Modification: A Review on Latest Advances

et al. 2019

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“…Bitumen exhibits aspects of both elastic and viscous behaviors and is thus classified as a visco-elastic material [31,32]. DSR is a common technique used to study the rheology of asphalt binders at high and intermediate temperatures [33,34]. Operatively, a bitumen sample was sandwiched between two parallel plates, one standing and one oscillatory.…”

Section: Dynamic Shear Rheology (Dsr)mentioning

confidence: 99%

Effects of Natural Antioxidant Agents on the Bitumen Aging Process: An EPR and Rheological Investigation

et al. 2018

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Bitumen aging is the major factor contributing to the deterioration of the road pavement. Oxidation and volatilization are generally considered as the most important phenomena affecting aging in asphalt paving mixtures. The present study was carried out to investigate whether various antioxidants provided by natural resources such as phospholipids, ascorbic acid as well as lignin from rice husk, could be used to reduce age hardening in asphalt binders. A selected bituminous material was modified by adding 2% w/w of the anti-aging natural additives and subjected to accelerated oxidative aging regimes according to the Rolling Thin Film Oven Test (RTFOT) method. The effects of aging were evaluated based on changes in sol-gel transition temperature of modified bitumens measured through Dynamic Shear Rheology (DSR). Moreover, changes of Electron Paramagnetic Resonance (EPR) spectra were monitored on the bituminous fractions asphaltene and maltene separated by solvent extraction upon oxidative aging. The phospholipids-treated binder exhibited the highest resistance to oxidation and the lowest age-hardening effect compared to the other tested anti-oxidants. The combination of EPR and DSR techniques represents a promising method for elucidating the changes in associated complex properties of bitumen fractions promoted by addition of free radical scavengers borrowed by green resources.

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“…Bitumen exhibits aspects of both elastic and viscous behaviours and is thus classified as a visco-elastic material [25,26]. DSR is a common technique used to study the rheology of asphalt binders at high and intermediate temperatures [27,28]. Operatively, a bitumen sample was sandwiched between two parallel plates, one standing and one oscillatory.…”

Section: Dynamic Shear Rheology (Dsr)mentioning

confidence: 99%

Effects of Natural Antioxidant Agents on the Bitumen Aging Process: An EPR and Rheological Investigation

Rossi¹,

Caputo²,

Ashimova³

et al. 2018

Preprint

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Bitumen aging is the major factor which contributes to the deterioration of the road pavement. Oxidation and volatilization are generally considered as the most important phenomena affecting aging in asphalt paving mixtures. The present study was carried to investigate whether various antioxidants provided by natural resources such as phospholipids, ascorbic acid as well as lignin from rice husk, could be used to reduce age hardening in asphalt binders. A selected bituminous material was modified by adding 2 % w/w of the anti-aging natural additives and subjected to accelerated oxidative aging regimes according to the Rolling Thin Film Oven Test (RTFOT) method. The effects of aging were evaluated based on changes in sol-gel transition temperature of modified bitumens measured through Dynamic Shear Rheology (DSR). Moreover, changes of Electron Paramagnetic Resonance (EPR) spectra were monitored on the bituminous fractions asphaltene and maltene separated by solvent extraction upon oxidative aging. The phospholipids-treated binder exhibited the highest resistance to oxidation and the lowest age-hardening effect compared to the other tested anti-oxidants. The combination of EPR and DSR techniques represents a promising method for elucidating the changes in associated complex properties of bitumen fractions promoted by addition of free radical scavengers borrowed by green resources.

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Polymer modified bitumen: Rheological properties and structural characterization

Cited by 114 publications

References 12 publications

Bitumen and Bitumen Modification: A Review on Latest Advances

Bitumen and Bitumen Modification: A Review on Latest Advances

Effects of Natural Antioxidant Agents on the Bitumen Aging Process: An EPR and Rheological Investigation

Effects of Natural Antioxidant Agents on the Bitumen Aging Process: An EPR and Rheological Investigation

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