Role of a food grade additive in the high temperature performance of modified bitumens

Rossi, Cesare Oliviero; Caputo, Paolino; Loise, Valeria; Miriello, Domenico; Teltayev, Bagdat; Angelico, Ruggero

doi:10.1016/j.colsurfa.2017.01.025

Cited by 34 publications

(20 citation statements)

References 26 publications

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“…The homogenous mixture was poured into cans with a proper seal. Then these cans were kept in a dark place at 25 ℃ [9].…”

Section: Mixing Of Additive Into Bitumenmentioning

confidence: 99%

“…54$ billion are spent on maintenance of road pavements in America because of moisture damage. About 82% of American Transportation Agencies recommend the use of adhesion promoters in low-performance job mix formulas [7][8][9]. Zhang has used the Rediset [10] Nano-charcoal and coconut shell ash [11] and, Hamedi and Tahami (2018) has used Zycosoil as adhesion promotor [2].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Natural Zeolite and Paraffin Wax on Adhesion Strength Between Bitumen and Aggregate

et al. 2020

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Asphalt mixture that is used for the construction of flexible pavements is mainly composed of two constituents i.e. bitumen and aggregate. Sturdy adhesion among bitumen and aggregate is the sign of durability of asphalt pavements. Adhesion is considered as one of the most important factors for sustainable asphalt pavement. This is the motive why its miles utmost important to deeply understand the phenomenon of adhesion considering the effect of alternate in temperature, moisture conditions. In this study softer binder 80/100 was selected that has less adhesion compared to hard pen grades. Limestone aggregates which is commonly used for the construction of asphalt pavements has also been selected. Two types of modifiers (Zeolite and Paraffin Wax) were selected because of the extensive use in asphalt foaming and the polymer modified asphalt mixtures as temperature reducing agent. To investigate the strength of adhesive bond, Bitumen Bond Strength (BBS) was performed at different temperatures, in dry, and wet conditions. To quantify the effect of modifiers on penetration grade and softening point conventional testing is performed. For performance grading, the PG test was performed using Dynamic Shear Rheometer. The comparisons were developed among pull of tensile strength at dry and after 72hrs water conditioning while preserving the temperature at 25 .To check the effect of temperature BBS is performed at 15 . The results illustrate that 2% zeolite shows best results in terms of adhesion and performance grade while Paraffin wax has less adhesion and poor performance grade.

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“…The homogenous mixture was poured into cans with a proper seal. Then these cans were kept in a dark place at 25 ℃ [9].…”

Section: Mixing Of Additive Into Bitumenmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Natural Zeolite and Paraffin Wax on Adhesion Strength Between Bitumen and Aggregate

et al. 2020

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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%

“…Those data clearly indicate a superior performance manifested by LCS in retarding oxidative hardening compared to the other tested antioxidants. Hitherto, the use of raw mixtures of natural phospholipids has been confirmed to be a powerful method to increase both the adhesion properties of bitumen [28] and its mechanical resistance to the action of thermal shocks [35]. Here, the discover of anti-aging properties of LCS adds another advantage of using these green compounds as multi-functional additives to enhance the bitumen performances.…”

Section: Mechanical Behaviormentioning

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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“…Crumb rubber (CR), which is obtained from grinding the scrap tires and be incorporated in bitumen modification due to high elastic properties of crumb rubber [3][4][5] . Bitumen is a viscoelastic material and is used in road pavement due to its high mechanical and rheological properties [6][7][8] . However, with increased transportation load on road, there is a need to the strength, fatigue, rutting, and resistance to ageing and high thermal and storage stability of bitumen.…”

Section: Introductionmentioning

confidence: 99%

Improved Storage Stability of Crumb Rubber Modified Bitumen using Long Chain Amines

Mohanta¹,

Yadav²,

Raman³

et al. 2017

IJERT

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-With increased transportation, waste tire rubber accumulation becomes a major environmental concern. The use of crumb rubber, recycled tire rubber is considered as an additive in bitumen modification for road pavement and economic disposal or tire rubber. Although, crumb rubber modified bitumen shows excellent performance properties due to its elastic nature but meanwhile storage stability of crumb rubber modified bitumen (CRMB) is still an issue due to poor dispersion of crumb rubber particle in bitumen, which affects the performance of road pavement. Keeping these issues in mind, we have doped various long chain amines in CRMB to improve its storage stability and physical and rheological properties CRMB.

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Role of a food grade additive in the high temperature performance of modified bitumens

Cited by 34 publications

References 26 publications

Influence of Natural Zeolite and Paraffin Wax on Adhesion Strength Between Bitumen and Aggregate

Influence of Natural Zeolite and Paraffin Wax on Adhesion Strength Between Bitumen and Aggregate

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

Improved Storage Stability of Crumb Rubber Modified Bitumen using Long Chain Amines

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