Development of Super Road Heat-Reflective Coating and Its Field Application

Yi, Yong; Jiang, Yingjun; Li, Qilong; Deng, Changqing; Ji, Xiaoping; Xue, Jinshun

doi:10.3390/coatings9120802

Cited by 27 publications

(12 citation statements)

References 34 publications

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“…The temperature gradient between the two scenarios remained constant from 9:00 to 18:00; it afterwards decreased until 21:00 and remained unvaried around −0.2 • C during the night-time (Figure 9). These results were confirmed by previous studies, which reported a reduction of air temperature due to reflective pavements in the range between 0.15 and 3.0 • C [15,91]. The thermal benefits of cool materials were not limited to the pedestrian level.…”

Section: Air Temperaturesupporting

confidence: 89%

The Use of Cool Pavements for the Regeneration of Industrial Districts

et al. 2021

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Industrial districts are characterized by the presence of low and extensive building volumes and by predominantly sealed, impermeable surfaces, which contribute to several environmental problems and to the deterioration of outdoor human thermal comfort conditions, especially during summer hot days. To tackle these issues, this study proposes an approach for the regeneration of industrial districts based on the application of cool materials. Reflective and evaporative pavements were selected as suitable solutions to reduce summer overheating, while ensuring the functionality required by the industrial production, and contributing to stormwater management. The effectiveness of the approach was tested in a portion of the industrial district of Padua (Italy). In summer conditions, the replacement of conventional pavements with cool materials results in a reduction of the ground surface temperatures up to 14.0 °C and a consequent decrease of the air temperature at pedestrian level between 0.6 and 1.2 °C. The effects of human thermal comfort conditions highly depend on the selected cool material and on the morphology of the urban canyon. Finally, the reduction of external surface and air temperatures also contributes in cooling indoor spaces (average decrease from 1.0 to 2.5 °C), with impacts on the energy efficiency of the industrial buildings.

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Section: Air Temperaturesupporting

confidence: 89%

The Use of Cool Pavements for the Regeneration of Industrial Districts

et al. 2021

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“…It should focus on the pigment to improve the coating reflectivity. Yi et al (2019) [55] Fig. 3 Conventional and heat-reflective pavements [47] Table 1 Reflectance of different pigments and asphalt mixtures [48,49] investigated the effect of the ratio of pigment to base polymer on the cooling effect.…”

Section: Heat-reflective Materialsmentioning

confidence: 99%

“…Moreover, some additives can enhance the performance and extend the life of the coating [50]. Researchers found that the adhesion promoter additives can significantly increase the adhesion strength of the coating, thereby improving the service life of the coating [55].…”

Section: Heat-reflective Materialsmentioning

confidence: 99%

“…[18] developed a thermochromic coating to balance the cooling effect and the pavement color, which can turn light at high temperature and dark as temperature decreases. The skid resistance of asphalt pavement is usually compromised by heat-reflective coatings, which can be compensated by adding machine-made sands, glass microspheres, wear-resisting agents, and ceramic particles to the coating [50,55,64]. Anti-aging and durability are also challenges for heat-reflective coatings.…”

Section: The Surface Function Of Heat-reflective Coatingmentioning

confidence: 99%

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Review of regulation techniques of asphalt pavement high temperature for climate change adaptation

Gong

Zhang

et al. 2022

J Infrastruct Preserv Resil

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Asphalt pavement is vulnerable to the temperature rising and extremely high-temperature weather caused by climate change. The regulation techniques of asphalt pavement high temperature have become a growing concern to adapt to climate change. This paper reviewed the state of the art on regulating asphalt pavement high temperature. Firstly, the influencing factors and potential regulation paths of asphalt pavement temperature were summarized. The regulation techniques were categorized into two categories. One is to regulate the heat transfer process, including enhancing reflection, increasing thermal resistance, and evaporation cooling. The other is to regulate through heat collection and transfer or conversion, including embedded heat exchange system, phase change asphalt pavement, and thermoelectric system. Then, the regulation techniques in the literature were reviewed one by one in terms of cooling effects and pavement performance. The issues that still need to be improved were also discussed. Finally, the regulation techniques were compared from the perspectives of theoretical cooling effects, construction convenience, and required maintenance. It can provide reference for understanding the development status of asphalt pavement high temperature regulation techniques and technique selection in practice.

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“…The results show that the semi-flexible material has relatively high temperature stability. The incorporation of the interface optimizer can significantly improve the high temperature stability of the semi-flexible material [26], wherein the cationic emulsified asphalt has the most obvious lifting effect. Table 11 shows the results of low temperature bending tests for different high performance semi-flexible materials.…”

Section: Pavement Properties Of the Semi-flexible Materials With Micromentioning

confidence: 99%

High-Performance Semi-Flexible Pavement Coating Material with the Microscopic Interface Optimization

Jiang

Xue

et al. 2020

Coatings

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This paper aims to optimize the asphalt-mortar interface characteristics of semi-flexible pavement coating material (SFPCM), three types of the interface modifiers, namely the silane coupling agent, carboxylated styrene-butadiene latex, and cationic emulsified asphalt, are selected to add into the cement mortar to optimize the asphalt-mortar interface. The microscopic characteristics of the asphalt-mortar interface and the macroscopic pavement performance of the SFPCM after the interface optimization are investigated to reveal the effect of interface modifiers and determine the best formula. Results show that: (1) The dry shrinkage of the cement mortar is increased with the increased dosage of the interface modifiers, while the strength is decreased accordingly; (2) the optimum dosages of the silane coupling agent, carboxylated styrene butadiene latex, and cationic emulsified asphalt are 0.5%, 10%, and 5%, respectively; (3) the microscopic asphalt-mortar interface characteristics of the SFPCM with different interface modifiers have significant differences; (4) the SFPCM with the cationic emulsified asphalt presents the best pavement performance, particularly the high-temperature stability. These results can be attributed to improve the pavement properties of SFPCM.

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Development of Super Road Heat-Reflective Coating and Its Field Application

Cited by 27 publications

References 34 publications

The Use of Cool Pavements for the Regeneration of Industrial Districts

The Use of Cool Pavements for the Regeneration of Industrial Districts

Review of regulation techniques of asphalt pavement high temperature for climate change adaptation

High-Performance Semi-Flexible Pavement Coating Material with the Microscopic Interface Optimization

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