Effects of alternative polymer modifications on cracking performance of asphalt binders and resultant mixtures

Yu, Yang; Chun, Sanghyun; Roque, Reynaldo; Kim, Sungho

doi:10.1016/j.conbuildmat.2016.06.049

Cited by 21 publications

(4 citation statements)

References 9 publications

(11 reference statements)

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“…FED, which is the energy per unit volume required to initiate local fracture, was found to be a fundamental material property, independent of testing temperature (within the 0-15ºC range) and loading rate. In prior research, the BFE test successfully differentiated elastomeric polymer-modified binders (SBS plus polypropylene composite and SBS plus oxidized polyethylene wax) from non-elastomeric polymer-modified binders (polyphosphoric acid) [24,25]. Recent work showed that FED translated well from binder to mixture such that binders with higher FED resulted in mixtures with greater FED values [23].…”

Section: Tests Based On Fracture Propertiesmentioning

confidence: 99%

Understanding asphalt binder cracking characterization at intermediate temperatures: Review and evaluation of two approaches

Hernando

Park³

et al. 2021

Construction and Building Materials

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Section: Tests Based On Fracture Propertiesmentioning

confidence: 99%

Understanding asphalt binder cracking characterization at intermediate temperatures: Review and evaluation of two approaches

Hernando

Park³

et al. 2021

Construction and Building Materials

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“…Shan et al [ 16 ] showed that with an increase in the SBS copolymer content, the nonlinear viscoelasticity of asphalt binder increases. Yan et al described the effect of the modifier such as a composite of SBS and other polymers such as polypropene, terpolymer or oxidized polyethylene wax on the asphalt binder cracking [ 18 ]. The laboratory investigation proved that these additives can reduce the rate of damage accumulation in asphalt mixture and improve the resistance to cracking.…”

Section: Introductionmentioning

confidence: 99%

Study on Styrene-Butadiene-Styrene Modified Asphalt Binders Relaxation at Low Temperature

Dziadosz

Słowik

Niwczyk³

et al. 2021

Materials

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The paper presents the results of laboratory investigation on asphalt binders relaxation at low temperature, carried out in a ductilometer using the tensile test with continuous force measurement. Polymer modified asphalt binder samples consisting of a 50/70 penetration grade bitumen mixed with a concentrate of styrene-butadiene-styrene (SBS) modified bitumen—a 160/220 penetration grade bitumen modified with a SBS copolymer in the amount of 9%—were tested. Therefore, polymer modified binders containing 3%, 4.5%, 6% and 7.5% SBS, respectively, were obtained and investigated. Tensile tests were performed at −16 °C on samples before aging and subjected to short-term aging (RTFOT). Test results in the form of relaxation curves have been mathematically described using a modified generalized Maxwell model. Based on the acquired results, it was shown that the increase of the SBS copolymer content in asphalt binder precipitates the relaxation process, while aging slows down this phenomenon. It has also been proven that with increased content of SBS elastomer in asphalt binder, the effect of short-term aging on binder’s stress relaxation ability at low temperatures is reduced.

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“…Therefore, asphalt modification is needed as it fundamentally effects the properties of bituminous mixtures. Recently, more attention has been given to improving performance of asphalt binder by modifying it with polymers, resulting in improved engineering properties of asphalt [3][4][5][6][7]. At low temperatures, a decrease in viscosity of the binder is intended to avoid making asphalt too stiff and losing cohesion with aggregates.…”

Section: Introductionmentioning

confidence: 99%

Rheology of Asphalt Binder Modified with 5W30 Viscosity Grade Waste Engine Oil

Shoukat

Yoo

2018

Applied Sciences

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The pavement structure tends to shrink under low temperature conditions and cracks will appear upon crossing threshold binder stiffness. Decreasing the binder viscosity at such low temperatures, by introducing additional oil fraction (aromatics and saturates) in asphalt colloidal systems, may result in improved resistance to thermal cracking. A single multi-grade engine oil (5W30) was used in this study to analyze the rheological properties imparted to binders. Rotational Viscosity (RV) test revealed that after Rolling Thin Film Oven (RTFO) aging, fresh oil and waste oil have a similar effect on decreasing the viscosity of binder and construction temperatures, reducing them by 5~8 °C. Fourier Transform Infrared Spectroscopy (FTIR) test results showed an abrupt increase of carbonyl concertation when fresh engine oil was used for rejuvenation while waste engine oil was less susceptible to oxidative aging. Dynamic analysis of modified binders proved that engine oil has better thermal cracking resistance but relaxation ability of binders and rutting resistance was impaired. Filtered waste engine oil resulted in a 35% decrement in the stiffness of binder compared to virgin asphalt after short term aging but upper Performance Grade (PG) was compromised by 1~3 °C with 2.5% oil inclusion. Unfiltered waste engine oil proved to have the least overall performance compared to fresh and filtered waste engine oil.

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Effects of alternative polymer modifications on cracking performance of asphalt binders and resultant mixtures

Cited by 21 publications

References 9 publications

Understanding asphalt binder cracking characterization at intermediate temperatures: Review and evaluation of two approaches

Understanding asphalt binder cracking characterization at intermediate temperatures: Review and evaluation of two approaches

Study on Styrene-Butadiene-Styrene Modified Asphalt Binders Relaxation at Low Temperature

Rheology of Asphalt Binder Modified with 5W30 Viscosity Grade Waste Engine Oil

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