Differences in Infiltration and Evaporation of Diesel and Gasoline Droplets Spilled onto Concrete Pavement

Mora, Bernat Adrià; Hilpert, Markus

doi:10.3390/su9071271

Cited by 13 publications

(6 citation statements)

References 36 publications

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“…Sources of unburned fuel releases at gas stations include leaks from storage tanks, accidental spills from the nozzles of gas dispensers, [13][14][15] fugitive vapor emissions through leaky pipes and fittings, vehicle tank vapor releases when refueling, and leaky hoses, all of which can contribute to subsurface and air pollution. 2 Routine fuel releases also occur through vent pipes of fuel storage tanks but are less noticeable because the pipes are typically tall, e.g., 4 m. These vent pipes are put in place to equilibrate pressures in the tanks and can be located as close as a few meters from residential buildings in dense urban settings (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Vent pipe emissions from storage tanks at gas stations: Implications for setback distances

Hilpert

Rule

Adria-Mora

et al. 2019

Science of The Total Environment

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At gas stations, fuel vapors are released into the atmosphere from storage tanks through vent pipes.Little is known about when releases occur, their magnitude, and their potential health consequences. Our goals were to quantify vent pipe releases and examine exceedance of shortterm exposure limits to benzene around gas stations. At two US gas stations, we measured volumetric vent pipe flow rates and pressure in the storage tank headspace at high temporal resolution for approximately three weeks. Based on the measured vent emission and meteorological data, we performed air dispersion modeling to obtain hourly atmospheric benzene levels. For the two gas stations, average vent emission factors were 0.17 and 0.21 kg of gasoline per 1,000 L dispensed. Modeling suggests that at one gas station, a 1-hour Reference Exposure Level (REL) for benzene for the general population (8 ppb) was exceeded only closer than 50 m from the station's center. At the other gas station, the REL was exceeded on two different days and up to 160 m from the center, likely due to non-compliant bulk fuel deliveries. A minimum risk level for intermediate duration (>14-364 days) benzene exposure (6 ppb) was exceeded at the elevation of the vent pipe opening up to 7 and 8 m from the two gas stations. Recorded vent emission factors were more than 10 times higher than estimates used to derive setback distances for gas stations. Setback distances should be revisited to address temporal variability and pollution controls in vent emissions.

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Section: Introductionmentioning

confidence: 99%

Vent pipe emissions from storage tanks at gas stations: Implications for setback distances

Hilpert

Rule

Adria-Mora

et al. 2019

Science of The Total Environment

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“…Studies on the effect of fuel corrosion on the performance of asphalt and asphalt mixtures have been conducted mainly by comparing changes in the mechanical properties of asphalt mixtures before and after fuel corrosion. To evaluate the extent of the effect of diesel leakage on asphalt concrete pavements, their mass loss, adhesive properties, rutting resistance, and resistance to water damage have been evaluated [2][3][4][5][6][7][8][9]. For example, Chen [5] investigated the effect of gasoline and diesel corrosion on the high-temperature performance of asphalt mixtures using Marshall specimens and rutted plate specimens and found that the oil erosion process significantly reduces the Marshall stability and dynamic stability of asphalt mixture specimens.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Zhang [6] found that the properties of asphalt and asphalt mixtures deteriorate significantly after oil corrosion. Moreover, diesel and gasoline affect asphalt and asphalt concrete to different extents [5][6][7].…”

Section: Literature Reviewmentioning

confidence: 99%

Evolution of Rheological and Microscopic Properties of Asphalt Binders under Fuel Corrosion

Lv,

Li,

Zhang

et al. 2024

Processes

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Vehicle fuel leaks can adversely affect the performance of asphalt pavements. To study the mechanisms of fuel corrosion damage in asphalt, four asphalt binders were selected in this study, and the evolution of their rheological and microscopic properties was investigated. Fuel corrosion caused continuous mass loss in asphalt binders. Base asphalt lost more than 50% of its mass after 24 h of fuel corrosion, while modified asphalts had better resistance. According to dynamic shear rheometer tests and multiple stress creep recovery tests, modifiers improved the high-temperature rheological properties of these asphalt binders. As the degree of fuel corrosion deepened, the indexes characterizing the high-temperature performance deteriorated. Rubber-modified asphalt showed the best resistance to high-temperature deformation, while the performance of LDPE-modified asphalt was more stable. In contrast, fuel corrosion improved the resistance of asphalt binders to low-temperature cracking to some extent: the creep strength (S) decreased as the creep rate (m) increased, and the resistance of SBS-modified asphalt to low-temperature cracking was optimal, with a 36% decrease in S-value after 24 h of fuel corrosion. Fourier transform infrared spectroscopy tests showed that diesel corrosion was a process of this physical dissolution, with no change in the chemical functional groups. Meanwhile, by using fluorescence images and analyzing the four-component test results, we found that fuel corrosion disrupted the stabilized structure formed by the modifiers, and the heavy components in the asphalt binders were converted into light components. This study reveals the evolution of the rheological and microscopic properties of asphalt under fuel corrosion, which can provide a reference for the optimization of fuel corrosion resistance in asphalt pavement.

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“…The fuel oil corrosion might cause pitting disease on asphalt pavement in a short time. In the meantime, the skid resistance, high temperature stability and water stability deteriorate dramatically, therefore threatening the road durability, driving comfort and safety [10][11][12][13][14][15][16]. Hence, it is of great significance to investigate and develop adaptable technology to improve the oil corrosion resistance of asphalt pavement.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Silicone Resin on the Fuel Oil Corrosion Resistance of Asphalt Mixture

Gao

Pang

et al. 2022

Sustainability

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Fuel oil leaked onto asphalt pavement will damage the asphalt layer by dissolving the binder, softening the mixture and finally resulting in distress such as raveling and pitting. In the meantime, the skid resistance, high temperature stability and water stability deteriorate dramatically. Silicone resin is a fog sealing material for asphalt pavement. It forms a three-dimensional network structure with -Si-O- chains and therefore shows strong hydrophobicity and chemical stability. This paper looks into the effect of silicone resin on the fuel oil corrosion resistance of asphalt mixture. The contact angle, Cantabro test, water stability test, wheel tracking test and three-point bending test were used to investigate the road performance and the corrosion resistance under diesel and gasoline. It was found that, compared with diesel, the contact angle between gasoline and asphalt is smaller, indicating better compatibility. The gasoline corrosion decreases the properties of asphalt mixture more than that of diesel, which indicates that the compatibility is related to the corrosion effect. The results also show that silicone resin can effectively improve the adhesion, strength, water stability and high- and low-temperature performance of asphalt mixture before and after fuel oil erosion, and the improving effect on asphalt mixture after oil erosion is better.

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Differences in Infiltration and Evaporation of Diesel and Gasoline Droplets Spilled onto Concrete Pavement

Cited by 13 publications

References 36 publications

Vent pipe emissions from storage tanks at gas stations: Implications for setback distances

Vent pipe emissions from storage tanks at gas stations: Implications for setback distances

Evolution of Rheological and Microscopic Properties of Asphalt Binders under Fuel Corrosion

The Effect of Silicone Resin on the Fuel Oil Corrosion Resistance of Asphalt Mixture

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