Incorporating hollow glass microsphere to cool asphalt pavement: Preliminary evaluation of asphalt mastic

Du, Yinfei; Ming-xin, Dai; Deng, Haibin; Deng, Deyi; Cheng, Po-Tai; Ma, Cong

doi:10.1016/j.conbuildmat.2020.118380

Cited by 20 publications

(5 citation statements)

References 38 publications

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“…The integration of glass into the matrix of cool materials was mostly in its finest structure; in general, good results were obtained when using small-sized particles of glass. For instance, hollow glass microspheres were integrated into an asphalt mixture, which resulted in a 40% decrease in the thermal conductivity, and a 60% increase in the infrared reflectance [121,122]. In the same sense, it was demonstrated that glass spheres incorporated in RR materials showed good results in terms of the energy reflected beyond the canyon for the building envelopes, in addition to the road-traffic-marking efficiency [83].…”

Section: Country Of Affiliationmentioning

confidence: 96%

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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Section: Country Of Affiliationmentioning

confidence: 96%

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

et al. 2022

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“…Using this technique reduces the temperature at the bottom of asphalt concrete and increases the surface temperature of the pavement (Doulos et al 2004). Materials such as ceramic and expanded polypropylene beads, fly ash cenospheres, and lightweight aggregates covered with resin (bauxite, shale ceramsite, volcanic rock, pottery sand, diatomite) were used to decline thermal conductivity (Mallick et al 2004;Huang et al 2009;González-Corrochano et al 2011;Feng et al 2013;Ren et al 2014;Pancar 2016;Wang et al 2018Wang et al , 2019Deng et al 2019;Yinfei et al 2020).…”

Section: Literature Reviewmentioning

confidence: 99%

Experimental and numerical investigation of using waste glass aggregates in asphalt pavement to mitigate urban heat islands

Mammeri

Vaillancourt

Shamsaei

2023

Clean Techn Environ Policy

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In this study, the experimental and numerical effects of using waste glass as aggregates of asphalt pavement are evaluated. The main reason for using this waste material as aggregates of hot mix asphalt (HMA) was to alleviate an environmental problem associated with asphalt pavements called urban heat islands (UHI). This phenomenon can increase the temperature in urban areas compared to their suburbs. Regarding the experimental part, two different HMA mixtures containing 100% limestone aggregates (HMAL) and 100% glass aggregates (HMAG) were made.An experimental setup was used to simulate the solar radiations on top of HMA specimens. As a result, thermal parameters, including thermal conductivity, thermal diffusivity, and specific heat capacity, were measured and calculated using the heat transfer equations and the heat transfer test.These results were then used to develop finite element models for two different pavement structures with different asphalt concrete layers (one of them with HMAL and the other with HMAG). Furthermore, the air temperature data, extracted by TRNSYS software for Bechar city in Algeria, was used for modeling. The surface temperature, first, second, and third interface temperatures in the asphalt pavement were obtained. The results revealed that using this waste aggregate increased the surface temperature during the day, which can make it susceptible to rutting. However, it reduced the surface temperature at night. More importantly, the HMAL absorbed 34 % and released 47% more heat than HMAG during days and nights. Hence, the HMAG performance can mitigate the UHI effects. Moreover, using this waste material as aggregates in HMA can introduce a recycling method with low costs.

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Section: Literature Reviewmentioning

confidence: 99%

Experimental and Numerical Investigation of Using Waste Glass Aggregates in Asphalt Pavement to Mitigate Urban Heat Islands

Mammeri

Vaillancourt

Shamsaei

2022

Preprint

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In this study, the experimental and numerical effects of using waste glass as aggregates of asphalt pavement are evaluated. The main reason for using this waste material as aggregates of hot mix asphalt (HMA) was to alleviate an environmental problem associated with asphalt pavements called urban heat islands (UHI). This phenomenon can increase the temperature in urban areas compared to their suburbs. Regarding the experimental part, two different HMA mixtures containing 100% limestone aggregates (HMAL) and 100% glass aggregates (HMAG) were made. An experimental setup was used to simulate the solar radiations on top of HMA specimens. As a result, thermal parameters, including thermal conductivity, thermal diffusivity, and specific heat capacity, were measured and calculated using the heat transfer equations and the heat transfer test. These results were then used to develop finite element models for two different pavement structures with different asphalt concrete layers (one of them with HMAL and the other with HMAG). Furthermore, the air temperature data, extracted by TRNSYS software for Bechar city in Algeria, was used for modeling. The surface temperature, first, second, and third interface temperatures in the asphalt pavement were obtained. The results revealed that using this waste aggregate increased the surface temperature during the day, which can make it susceptible to rutting. However, it reduced the surface temperature at night. More importantly, the HMAL absorbed 34 % and released 47% more heat than HMAG during days and nights. Hence, the HMAG performance can mitigate the UHI effects. Moreover, using this waste material as aggregates in HMA can introduce a recycling method with low costs.

show abstract

Incorporating hollow glass microsphere to cool asphalt pavement: Preliminary evaluation of asphalt mastic

Cited by 20 publications

References 38 publications

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

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

Experimental and numerical investigation of using waste glass aggregates in asphalt pavement to mitigate urban heat islands

Experimental and Numerical Investigation of Using Waste Glass Aggregates in Asphalt Pavement to Mitigate Urban Heat Islands

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