Preparation and analysis of composite phase change material used in asphalt mixture by sol–gel method

Ren, Jizhou; Ma, Biao; Si, Wei; Zhou, Xiaoli; Li, Chao

doi:10.1016/j.conbuildmat.2014.07.100

Cited by 51 publications

(19 citation statements)

References 18 publications

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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

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.

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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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“…Silica powder, floating beads, and activated carbon with PCM used as raw materials via the sol-gel process can improve the high-temperature stability of asphalt mixtures [126]. Activated carbon with PCM has a larger latent heat storage capacity (phase change enthalpy 19 J/g) and a proper phase change transition temperature (− 3 • C).…”

Section: Latent Heat Thermal Energy Storage (Lhts) Capabilitymentioning

confidence: 99%

Review and analysis of advances in functionalized, smart, and multifunctional asphalt mixtures

Segundo

Freitas

Branco

et al. 2021

Renewable and Sustainable Energy Reviews

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Road pavements are designed to withstand road traffic and weathering actions while ensuring comfortable and safe riding conditions as well as low costs and damage to the environment. When a road pavement has additional abilities or reacts to an external stimulus, it is considered to be smart and multifunctional. Examples of such abilities that have been investigated in asphalt mixtures are photocatalytic, superhydrophobic, self-cleaning, deicing/anti-icing, self-healing, thermochromic, and latent heat thermal energy storage abilities. These abilities are developed using different materials such as nano/microparticles (including semiconductor materials and microcapsules), fibers, phase change materials (PCMs), and dyes, often using dissimilar techniques such as spray coating, volume incorporation, spreading, and asphalt binder modification. Owing to their large surface areas, road pavements are true recipients for large amounts of nano/micromaterials, and consequently, act as important "tools" to stimulate an emerging sector related to the scale of production of materials in the form of nanoparticles. Moreover, smart and multifunctional road pavements can be included in the domain of clean technology (e.g., photocatalytic pavements that promote the environmental depollution of NO x -type gases emitted as vehicle exhaust gases). In this context, they can contribute to materializing the transition to a novel socioeconomic model known as "Green Recovery" that is environmentally friendly, sustainable, and inclusive. This model is a very important path toward economic and employment recovery, a vision to which many countries are strongly committed. Therefore, this work reviews new capabilities imparted to asphalt mixtures and provides recommendations.

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“…Such manufacturing methods have the characteristic that the molten PCM is absorbed into the host material’s porous structure. A vacuum impregnation method is an excellent alternative to have the most significant amount of molten PCM absorbed in the porous structure and the sol-gel process is a technique for fabricating both organic and inorganic shape-stabilized PCMs [ 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 ].…”

Section: Introductionmentioning

confidence: 99%

Thermal Energy Storage by the Encapsulation of Phase Change Materials in Building Elements—A Review

et al. 2021

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The energy sector is one of the fields of interest for different nations around the world. Due to the current fossil fuel crisis, the scientific community develops new energy-saving experiences to address this concern. Buildings are one of the elements of higher energy consumption, so the generation of knowledge and technological development may offer solutions to this energy demand, which are more than welcome. Phase change materials (PCMs) included in building elements such as wall panels, blocks, panels or coatings, for heating and cooling applications have been shown, when heating, to increase the heat storage capacity by absorbing heat as latent heat. Therefore, the use of latent heat storage systems using phase change materials (PCMs) has been investigated within the last two decades. In the present review, the macro and micro encapsulation methods for construction materials are reviewed, the former being the most viable method of inclusion of PCMs in construction elements. In addition, based on the analysis of the existing papers on the encapsulation process of PCMs, the importance to pay more attention to the bio-based PCMs is shown, since more research is needed to process such PCMs. To determine its thermophysical and mechanical behavior at the micro and macro levels, in order to see the feasibility of substituting petroleum-based PCMs with a more environmentally friendly bio-based one, a section devoted to the excellent PCM with lightweight aggregate (PCM-LWA concrete) is presented due to the lack of description given in other reviews.

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Preparation and analysis of composite phase change material used in asphalt mixture by sol–gel method

Cited by 51 publications

References 18 publications

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

Review and analysis of advances in functionalized, smart, and multifunctional asphalt mixtures

Thermal Energy Storage by the Encapsulation of Phase Change Materials in Building Elements—A Review

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