Emerging technologies in cool pavements: A review

Anupam, B. R.; Sahoo, Umesh Chandra; Chandrappa, Anush K.; Rath, Prasenjit

doi:10.1016/j.conbuildmat.2021.123892

Cited by 64 publications

(29 citation statements)

References 105 publications

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“…The study has also revealed that the released latent heat by PCMs throughout nighttime had not contributed much to the coating surface temperature. Consistently, Anupam et al, 2021 [89] concluded that PCMs were primarily used in lightweight porous aggregates. In service, PCM-integrated asphalt pavements were 4.30C cooler than standard asphalt pavements.…”

Section: Cool Pavement With Phase Change Materials (Pcm)mentioning

confidence: 90%

Emerging Trends in Overcoming the Weather Barrier to Sustainable Mobility in Gulf and Tropical Cities

Al‐Atroush

Mustaffa

Sebeay

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Several studies predicted that in case of the continuous rising concentrations of anthropogenic greenhouse gases (GHGs), the gulf region might experience intolerable temperatures to humans. Such terrible weather may have a severe consequence on different vital activities in different Gulf countries, such as the Muslim rites of Hajj in Mecca city. However, supporting the global mitigation efforts would significantly minimize the seriousness of the expected impacts. With that in mind, hot weather was reported as the significant barrier to sustainable mobility in those countries. Their current mobility is heavily dependent on privately-owned fossil-fueled vehicles rather than other sustainable transport choices. This paper reviewed the most recent innovative and solutions to overcome the problems associated with the hot climate. The review focused on the new techniques concerned with reducing the pavement surface temperature and the corresponding decreases in the ambient air temperature, aiming to promote sustainable mobility modes in hot climate cities. The paper also identified future research needs to fulfill each proposed solution's scientific and practical gap and overcome the weather barrier.

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Section: Cool Pavement With Phase Change Materials (Pcm)mentioning

confidence: 90%

Emerging Trends in Overcoming the Weather Barrier to Sustainable Mobility in Gulf and Tropical Cities

Al‐Atroush

Mustaffa

Sebeay

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Recently, more research has been oriented toward the performance of RR materials for different angles of incidence that takes into account the irradiated surface geometry scenarios, the urban density, the microclimate, the durability, and the costs and benefits [84]. As a solution, an angular selective behavior was discussed to overcome the limitations of RR materials, especially in summer [85].…”

Section: Rr Materialsmentioning

confidence: 99%

Cool Surface Strategies with an Emphasis on the Materials Dimension: A Review

et al. 2022

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The need to tackle the urban heat island effect demands the implementation of cool surfaces as a mitigation strategy. This study comprehensively reviews the evolution of this research field from a materials perspective. It provides a bibliometric analysis of the relevant literature using the SciMAT software processing of bibliographic records from 1995 to 2020, for the evolution of cool surfaces. The results obtained show an increased interest in the field from 2011 to 2020, particularly for roof applications, and present the scientific evolution of reflective materials. According to the materials dimension adopted by the development of the research field, the study is refined from a bibliometric analysis of 982 selected records for the analysis of five themes: (i) Pigments; (ii) Phase change materials; (iii) Retroreflective materials; (iv) Ceramic materials; and (v) Glass. These materials present promising results in terms of their solar reflectance performances in the mitigation of the urban heat island phenomenon. At the end of this review, recommendations for future studies are provided for the creation of economic and environmentally friendly materials based on waste glass recycling. This study represents a valuable contribution that provides a scientific background with regard to cool surfaces from a materials perspective for future investigations.

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“…Nowadays, some cooling methods have been proposed to reduce pavement temperature [ 5 , 6 , 7 ]. One method is to improve the high-temperature stability of asphalt and asphalt mixture, such as using modified asphalt or adjusting the gradation of the asphalt mixture.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Performance Analysis of Ceramsite Asphalt Mixture with Phase-Change Material

Yuan

et al. 2022

Materials

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In this paper, phase-change material (PCM) and ceramsite were used to increase the heat resistance of the asphalt mixture. The ceramsite asphalt mixture with PCM can bring a specific cooling effect to the road surface and alleviate the rapid deterioration at high temperature. Two phase-change materials, PCM-43 and PCM-48, were compared and selected as the heat absorption material of the asphalt mixture. It is found that PCM-43 has better thermal stability, temperature regulation performance, higher enthalpy value, and a less adverse effect on the rheological properties of asphalt. According to the road performance of the asphalt mixture, it suggests that the maximum content of ceramsite is 40%. The specific heat capacity of asphalt mixtures was studied by the method of the insulation bucket test, and the thermal conductivity coefficient of asphalt mixtures was tested by a thermal conductivity instrument. The results show that the specific heat capacity and thermal conductivity of the asphalt mixture can be reduced by adding PCM and ceramsite. The effect of ceramsite asphalt concrete with PCM on the temperature field of road structure was further analyzed by finite element method. Due to the thermal resistance of ceramsite in the upper layer, the cooling range and depth in the middle and lower surface layers can be improved. Meanwhile, the heat absorption of phase-change material can alleviate the heating phenomenon of the upper layer. Therefore, ceramsite asphalt concrete with PCM is effective for decreasing the high temperatures in the asphalt pavements.

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Emerging technologies in cool pavements: A review

Cited by 64 publications

References 105 publications

Emerging Trends in Overcoming the Weather Barrier to Sustainable Mobility in Gulf and Tropical Cities

Emerging Trends in Overcoming the Weather Barrier to Sustainable Mobility in Gulf and Tropical Cities

Cool Surface Strategies with an Emphasis on the Materials Dimension: A Review

Preparation and Performance Analysis of Ceramsite Asphalt Mixture with Phase-Change Material

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