Study on effectiveness of anti-icing and deicing performance of super-hydrophobic asphalt concrete

Gao, Yingli; Qu, Liangchen; He, Bei Hai; Dai, Kaiming; Fang, Zaosheng; Zhu, Rihong

doi:10.1016/j.conbuildmat.2018.10.009

Cited by 97 publications

(31 citation statements)

References 28 publications

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“…Some nano/micromaterials (with a grain size between 6 nm and 45 µm) have been applied on asphalt mixtures: TiO2, ZnO [3], modified-SiO2 [7], modified fluorinecontaining polymer with nano-CaO [4], Magnesium-Aluminium layered double hydroxides (Mg-Al LDHs) [2], and PTFE [1]. Usually, solutions (or dispersions) are prepared containing the nano/microparticles.…”

Section: Application Methodsmentioning

confidence: 99%

Superhydrophobic Asphalt Pavements: Surface Improvement

et al. 2020

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The most adverse weather condition for road safety happens when there is water, snow, or ice on the road surface because their presence highly decreases friction. Therefore, it is essential to drain or repel them quickly. If the water drops are repelled from the surface or the ice/snow formation is avoided with the application of superhydrophobic coatings, roads become safer. In order to functionalize the asphalt mixtures used in road pavements, nano/micromaterials, such as Polytetrafluoroethylene (PTFE), TiO2, and SiO2, among others have been applied by spraying coating. The mixes are usually characterized by the water contact angle, and the surface roughness is typically assessed by optical and electron analysis. This research work aims to present a brief overview of superhydrophobic asphalt mixtures.

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Section: Application Methodsmentioning

confidence: 99%

Superhydrophobic Asphalt Pavements: Surface Improvement

et al. 2020

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“…They measured the WCAs of different coatings to evaluate the hydrophobicity and found that the as-called W4 exhibited a largest WCA of 156 • . Gao et al studied the effectiveness of the anti-icing and deicing performance of superhydrophobic asphalt concrete and found that the superhydrophobic surface could delay the frost formation and evolution as well as decrease the adhesion force between the ice and surface [97]. Chen et al reviewed the developments on deicing and verified that the hydrophobicity had high correlation with icephobicity, which indicated that superhydrophobicity could be applied on asphalt for anti-icing [98].…”

Section: Asphaltmentioning

confidence: 99%

Superhydrophobic Civil Engineering Materials: A Review from Recent Developments

Xiang

Fang

et al. 2019

Coatings

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Superhydrophobic surfaces have drawn attention from scientists and engineers because of their extreme water repellency. More interestingly, these surfaces have also demonstrated an infinite influence on civil engineering materials. In this feature article, the history of wettability theory is described firstly. The approaches to construct hierarchical micro/nanostructures such as chemical vapor deposition (CVD), electrochemical, etching, and flame synthesis methods are introduced. Then, the advantages and limitations of each method are discussed. Furthermore, the recent progress of superhydrophobicity applied on civil engineering materials and its applications are summarized. Finally, the obstacles and prospects of superhydrophobic civil engineering materials are stated and expected. This review should be of interest to scientists and civil engineers who are interested in superhydrophobic surfaces and novel civil engineering materials.

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“…Nevertheless, reinforced concrete is usually exposed to various environments when in service. Corrosive environments like NaCl freeze-thaw cycles, chloride attacking, carbonation and their coupling effects usually demonstrate corrosive effects on reinforced concrete [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Research on the Influence of Carbonation on the Content and State of Chloride Ions and the Following Corrosion Resistance of Steel Bars in Cement Paste

Wang

Zhang

et al. 2020

Coatings

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In this paper, the changes of free chloride ion concentration and bound chloride concentration in cement paste with different total and proportion of mineral admixtures under carbonation were studied. Moreover, the following corrosion resistance of steel bars buried in cement paste under carbonation was researched by testing the electrical resistance and alternating current (AC) impedance spectroscopy of reinforced cement paste. Results indicated that fly ash and granulated blast furnace slag powder with the content less than 20% by mass ratio of total binder hindered the solidification of chloride ions in cement-based materials, and blast furnace slag powder with the content higher than 20% promoted the solidification of chloride ions in cement paste. The carbonation effect was able to decrease the amount of solidified chloride ion and increase the amount of free chloride ions leading to accelerating the corrosion of reinforcement. Meanwhile, the blast furnace slag powder with the content higher than 20% could effectively promote the corrosion resistance of steel bars.

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Study on effectiveness of anti-icing and deicing performance of super-hydrophobic asphalt concrete

Cited by 97 publications

References 28 publications

Superhydrophobic Asphalt Pavements: Surface Improvement

Superhydrophobic Asphalt Pavements: Surface Improvement

Superhydrophobic Civil Engineering Materials: A Review from Recent Developments

Research on the Influence of Carbonation on the Content and State of Chloride Ions and the Following Corrosion Resistance of Steel Bars in Cement Paste

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