Laboratory investigation on fumes generated by different modified asphalt binders

Li, Hui; Jia, Man; Zhang, Xue; Wang, Zipeng; Liu, Yiding; Jie, Yang; Yang, Bing; Sun, Yang; Wang, Hanbing; Ma, Hongwei

doi:10.1016/j.trd.2023.103828

Cited by 25 publications

(8 citation statements)

References 34 publications

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“…65 The release behavior depends upon factors including the molecular structure, intermolecular interactions, and thermal properties. 54,66 To comprehend the influence of these molecular-level properties on VOC emission, researchers have analyzed the composition and structure of asphalt using analytical techniques. 67 Fourier transform infrared spectroscopy has revealed that the lighter fractions are mainly aliphatic compounds and monoaromatics, while heavier compounds contain more cyclic rings and polar functional groups that promote aggregation.…”

Section: Release Mechanism Of Asphalt Vocsmentioning

confidence: 99%

See 1 more Smart Citation

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: Release Mechanism Of Asphalt Vocsmentioning

confidence: 99%

“…When asphalt is heated during construction processes, decomposition begins to occur as the lighter fractions evaporate out as VOCs . The release behavior depends upon factors including the molecular structure, intermolecular interactions, and thermal properties. , …”

Section: Release Mechanism Of Asphalt Vocsmentioning

confidence: 99%

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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“…Acridine and phenols contained in the smoke will stimulate the mucous membranes of the respiratory tract, leading to photophobia, nausea, stomach discomfort, dizziness, and other side effects. The main effects of VOCs on the human body are shown in Figure 19 [119][120][121][122][123]. In China, almost 27.2 million tons of asphalt are used annually to build roads, and the emissions of CO x , NO x , SO 2 , and VOCs place a burden on the environment.…”

Section: Cement-based Pcfpmentioning

confidence: 99%

Precast Assembled Road Paving Technology: Progress and Prospects

Tan,

Zhu,

Yang

et al. 2024

Materials

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This article presents a systematic review of the most cutting-edge research on precast pavement technology for the first time. Firstly, precast pavement is divided into two categories, precast cement concrete pavement and precast carpeted flexible pavement, according to the application of precast technology in pavement engineering. Subsequently, the structural characteristics, advantages, and disadvantages of various precast pavement systems are compared and analyzed; technical problems in precast pavement systems are explained; and future development directions are identified. In addition, the text specifically mentions the great contribution of precast carpeted flexible pavement technology in reducing the harmful effects of asphalt fumes on humans and the environment. This work will promote the application of prefabrication in road engineering and provide suggestions and references for subsequent research.

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“…Asphalt fume predominantly consisted of volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs), sulfur oxides, and nitrogen oxides. VOCs, in terms of content and type, represented the majority, with alkanes, olefins, alkynes, benzene series, and hydrocarbon derivatives (such as aldehydes and ketones) being the main constituents [4]. Inhalation of these compounds could lead to respiratory difficulties, organ damage, and even cancer [5].…”

Section: Introductionmentioning

confidence: 99%

“…These VSCs included hydrogen sulfide, benzothiazole, 3-methylthiophene, 2-methylthiophene, and others [2,16]. It is worth noting that these compounds possess strong carcinogenic properties, posing a significant threat to human health [2,4].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Fume Suppression, Viscosity-Retarding, and Rheological Properties of Eco-Friendly High-Viscosity Modified Asphalt

Ning,

Sun,

Qiu

et al. 2023

Coatings

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In order to address the issues of high viscosity and excessive fume exhaust associated with high-viscosity modified asphalt (HVMA), the objective of this study was to develop an eco-friendly HVMA by incorporating fume suppressants and viscosity-retarding agents (VRAs). To begin with, desulfurization rubber powder (DRP) was utilized as a modifier, and fume suppressants, including activated carbon, a chemical reaction fume suppressant, and a composite fume suppressant combining activated carbon and chemical reaction fume suppressant were added to the HVMA separately. The fume suppression effect and odor level were observed to determine the optimal fume suppressant composition for this study. Based on these observations, an area integration method was proposed, utilizing rotational viscosity testing and temperature sweeping experiments, evaluating the viscosity-retarding effect and mixing temperature when different amounts of Sasobit VRA, Evotherm3G VRA, and a composite VRA of Sasobit and Evotherm3G were added to the HVMA. This approach aimed to identify the eco-friendly HVMA with the most effective fume suppression and viscosity-retarding abilities. Furthermore, the morphology and rheological properties of the eco-friendly HVMA were examined through fluorescence microscopy, zero shear viscosity test, multiple stress creep recovery analysis, liner amplitude sweep test, and frequency sweep test. The results demonstrated that the HVMA formulation consisting of 15% DRP and 1% composite fume suppressant exhibited a satisfactory fume suppression effect and odor level. Based on this, the HVMA formulation containing 0.6% Evotherm3G and 3% Sasobit VRAs displayed the best viscosity-retarding effect while reducing the mixing temperature. Moreover, when compared to common HVMA, the eco-friendly HVMA exhibited excellent high-temperature resistance, successfully accomplishing the dual objectives of ecological friendliness and superior performance.

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Laboratory investigation on fumes generated by different modified asphalt binders

Cited by 25 publications

References 34 publications

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

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

Precast Assembled Road Paving Technology: Progress and Prospects

Evaluation of Fume Suppression, Viscosity-Retarding, and Rheological Properties of Eco-Friendly High-Viscosity Modified Asphalt

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