Linear viscoelastic properties and fatigue S-VECD based evaluation of polymer-modified asphalt mixtures

Queiroz, Rita Flávia Régis; Rodrigues, Jorge Luíz Nobre; Patrício, Jonny Dantas; Silva, Pedro Henrique da; Carvalho, Jeovanesa Régis; Neto, Osires de Medeiros Melo; Guedes, Leornado Rodrigues; Lima, Robson Kel Batista de

doi:10.1016/j.jobe.2023.106916

Cited by 12 publications

(3 citation statements)

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“…The test starts by applying a minor strain to a more significant strain amplitude, and the response is recorded. The stress and strain data are recorded and analyzed for important information about linear viscoelastic behavior [110][111][112]. Much research has been conducted to characterize polymer-modified asphalt binders using the LAS test.…”

Section: Linear Amplitude Sweep (Las) Testmentioning

confidence: 99%

“…The sample is placed in the sample holder of the spectrometer. The goal of FTIR is to obtain information about the amount of infrared light absorbed by the sample under examination at a specific wavelength range [15,110]. Depending on the surroundings, mid-infrared light (400-4000 cm −1 ) causes molecules to vibrate.…”

Section: Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 99%

“…The primary vibration is excited as the photon is canceled. The transmission absorption spectra are recorded in this way [110,112,113]. Further analysis of the detected spectrum enables the production of the FTIR results.…”

Section: Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 99%

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A Comprehensive Literature Review on Polymer-Modified Asphalt Binder

Emtiaz,

Imtiyaz,

Majumder

et al. 2023

CivilEng

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Due to periodic variations in temperature and heavy traffic loading, hot-mix asphalt (HMA) pavements undergo considerable distress during their service life. The rheological properties of asphalt binder, when subjected to complex physical and chemical processes, make it stiff and sometimes brittle, which ultimately plays a huge part in pavement deterioration. This phenomenon is commonly known as asphalt aging. Incorporating polymer modifiers with virgin asphalt can work as an effective means to change the binder properties and alleviate the issues related to asphalt aging. Different types of polymers, including elastomers, plastomers, and reactive polymers, can mixed in different combinations with the virgin asphalt to create polymer-modified binders (PMBs). In general, polymers are typically added to the virgin asphalt binder in PMB manufacturing at weight percentages ranging from 3% to 7%. Previous research suggests that many polymer-modified binders (PMBs) show great resiliency and perform extremely well during field and laboratory testing, although the complex nature of asphalt itself makes it significantly difficult to understand the relationship and compatibility of the asphalt–polymer system. This paper aims to develop a comprehensive literature review on the chemical aspects, microscopic structure, and compatibility of polymers with virgin asphalt. It was found that swelling, storage stability, blend morphology, and the polymer mixing technique play a great role in the compatibility of asphalt–polymer systems. Thermoplastic elastomers (e.g., styrene–butadiene–styrene) and plastomers (e.g., ethylene–vinyl acetate) are the most used polymer modifiers for asphalt binders. The compatibility of the polymer–asphalt system can be improved by sulfur vulcanization, antioxidants, hydrophobic clay minerals, functionalization, and reactive polymers, among other techniques.

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Section: Linear Amplitude Sweep (Las) Testmentioning

confidence: 99%

Section: Fourier-transform Infrared Spectroscopy (Ftir)mentioning

confidence: 99%