Chemical fingerprinting of volatile organic compounds from asphalt binder for quantitative detection

Chang, Xiwen; Long, Yongshuang; Wang, Chen; Xiao, Yong

doi:10.1016/j.conbuildmat.2023.130766

Cited by 10 publications

(5 citation statements)

References 47 publications

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“…38 As depicted in Figure 6, GC separates the components of VOCs based on their differential adsorption affinities to the chromatographic column. 39 The isolated compounds are then ionized and fragmented in the mass spectrometer, generating mass spectra that provide valuable information about their molecular structures. GC−MS combines the high resolution of GC with the sensitivity of MS, enabling accurate identification and quantification of VOC contents.…”

Section: Sampling Methodsmentioning

confidence: 99%

“…GC–MS is recognized as one of the most powerful techniques for characterizing complex chemical mixtures, such as asphalt VOCs . As depicted in Figure , GC separates the components of VOCs based on their differential adsorption affinities to the chromatographic column . The isolated compounds are then ionized and fragmented in the mass spectrometer, generating mass spectra that provide valuable information about their molecular structures.…”

Section: Methodsmentioning

confidence: 99%

“…6 Typical VOCs identified in asphalt emissions include straight-chain alkanes (C 5 −C 20 ), branched alkanes (pristane and phytane), cycloalkanes (cyclopentane and cyclohexane), alkenes (1-pentene and 1,3-cyclopentadiene), arenes (benzene, toluene, ethylbenzene, and xylenes), polyaromatic hydrocarbons (naphthalene and phenanthrene), nitrogencontaining compounds (quinoline and benzonitrile), sulfurcontaining compounds (benzothiophene), and oxygenated compounds, such as ketones, alcohols, and aldehydes. 39 Various researchers worldwide have investigated the composition characteristics of VOCs released from different asphalt sources using analytical techniques, like GC−MS. 42 Lin et al 43 detected 41 VOC components in hot mixed asphalt samples from Hong Kong, with toluene accounting for the largest fraction.…”

Section: Common Voc Components In Asphaltmentioning

confidence: 99%

“…Chang et al 39 systematically addressed the inherent complexity and variability of asphalt VOC components. Fingerprint components were introduced as reference standards for objective VOC analysis, specifically defining asphalt VOC fingerprint components.…”

Section: Influencing Factors On Voc Compositionmentioning

confidence: 99%

“…Asphalt VOCs contain various components that can be broadly classified into alkanes, alkenes, arenes, nitrogen/sulfur-containing compounds, oxygenated compounds, and heterocyclics . Typical VOCs identified in asphalt emissions include straight-chain alkanes (C 5 –C 20 ), branched alkanes (pristane and phytane), cycloalkanes (cyclopentane and cyclohexane), alkenes (1-pentene and 1,3-cyclopentadiene), arenes (benzene, toluene, ethylbenzene, and xylenes), polyaromatic hydrocarbons (naphthalene and phenanthrene), nitrogen-containing compounds (quinoline and benzonitrile), sulfur-containing compounds (benzothiophene), and oxygenated compounds, such as ketones, alcohols, and aldehydes …”

Section: Composition Characteristics Of Asphalt Vocsmentioning

confidence: 99%

See 4 more Smart Citations

Emission Characteristics, Environmental Impacts, and Health Risks of Volatile Organic Compounds from Asphalt Materials: A State-of-the-Art Review

Li,

Qin,

Zhang

et al. 2024

Energy Fuels

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The emission of volatile organic compounds (VOCs) from asphalt during construction processes presents substantial risks to human health and the environment. To advance sustainable transportation development, this review offers a comprehensive study of the methods for characterization, release characteristics, influencing factors, release mechanisms, and environmental impacts of asphalt VOCs. At present, research has been conducted on characterization methods, component characteristics, influencing factors, and environmental and health risks. The findings indicate that gas chromatography–mass spectrometry is the most comprehensive method for characterizing asphalt VOCs. Asphalt VOCs mainly comprise alkanes, aromatics, and aliphatic hydrocarbons. Factors including the temperature, asphalt source, and ultraviolet radiation can all affect the release characteristics of asphalt VOCs. Elevated VOC levels contribute to the photochemical production of ozone and fine particulate matter, exacerbating air pollution and climate change. Additionally, specific asphalt VOCs, including benzene and polycyclic aromatic hydrocarbons, pose health risks to humans. While progress has been achieved in the current research, challenges persist in quantifying VOCs, assessing their environmental impacts and health risks, and implementing effective mitigation technologies. To address these challenges, future research should focus on establishing asphalt VOC fingerprints, quantitative methods, evaluation criteria, material innovation, optimization of construction processes, exposure assessment, and collaborative solution implementation.

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Section: Sampling Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%