Economic assessment of the production of subcritically dried silica-based aerogels

Garrido, Rita; Silvestre, José Dinis; Flores‐Colen, Inês; Júlio, Maria de Fátima; Pedroso, Marco

doi:10.1016/j.jnoncrysol.2019.04.016

Cited by 34 publications

(22 citation statements)

References 14 publications

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“…Also, compressive strength and capillary water absorption have been carried out on render samples collected from on-site. The study of aerogel (Garrido et al, 2019) and aerogel-based renders is increasing due to their excellent thermal performance and application on thermal rehabilitation of walls, with decreased thicknesses solutions when compared with other conventional thermal renders. In the literature there are already a few number of studies that focus on in-situ testing of aerogel-based renders, but mainly on the hygrothermal behavior of these renders based on numerical simulations (Fantucci et al, 2020;Fenoglio et al, 2018;Ibrahim et al, 2014;Stahl et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

In-Situ Tests on Silica Aerogel-Based Rendering Walls

Flores‐Colen¹,

Pedroso²,

Soares³

et al. 2020

XV International Conference on Durability of Building Materials and Components. eBook of Proceedings

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In this paper, two aerogel-based renders are characterized based on in-situ testing of walls prototypes. The in-situ tests to assess the mechanical performance are: pull-off, surface impact tests and compressive strength on collected samples. The physical performance includes the water resistance and thermal conductivity coefficient. The tests carried out to assess water-resistance are: Karsten tube, moisture meter and capillary water absorption of collected samples. The thermal performance was tested based on infrared thermography and thermal conductivity transient method. The combination of these in-situ tests allowed a better performance characterization of the aerogelbased renders and characterized the applied renders. These results were carried out under two national research projects (Nanorender and P2020 PEP).

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Section: Introductionmentioning

confidence: 99%

In-Situ Tests on Silica Aerogel-Based Rendering Walls

Flores‐Colen¹,

Pedroso²,

Soares³

et al. 2020

XV International Conference on Durability of Building Materials and Components. eBook of Proceedings

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“…With the inclusion of this nanomaterial in mortars, first done in 2012 by Stahl [31], it started being possible to significantly decrease the thermal conductivity of mortars (<0.060 W•m −1 •K −1 ) [32][33][34], leading to the development and market reach of high-performance thermal insulating mortars [20,32,[35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Nanomaterials’ Influence on the Performance of Thermal Insulating Mortars—A Statistical Analysis

et al. 2020

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This research provides a statistical analysis of the mechanical and physical properties of thermal insulating mortars developed in the laboratory and by the industry with and without the incorporation of nanomaterials. This was evaluated by carrying out a uni and bivariate analysis, principal components and factor analysis, cluster analysis, and the application of regression models. The results show that it is possible to find associations between these mortars’ properties, but also how these formulations’ development can be approached in the future to achieve better overall performance. They also show that the use of nanomaterials, namely silica aerogel, significantly improved the mortars’ thermal insulation capabilities, allowing us to obtain mortar formulations with thermal conductivities below the values presented by classic thermal insulating materials. Therefore, with this investigation, other researchers can support their product-development choices when incorporating nanomaterials to reduce mortars’ thermal conductivities, increasing their production efficiency, overall multifunctionality, and sustainability.

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“…Obviously, the production cost is not limited to the cost of the raw materials, but includes also the cost of labor, utility (equipment and production plant), energy, money (discount rate), and taxation. Several methods can be used to carry out a complete economic evaluation, including the thorough economic life cycle assessment methodology [14]. What is relevant here is that the cost of equipment is that of the typical stainless steel agitated reactor used by specialty chemical companies to produce paints and coatings.…”

Section: Economic Insightmentioning

confidence: 99%

Sustainability Evaluation of AquaSun Antifouling Coating Production

2022

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Relying on a cost-effective and green process that is technically and economically feasible on large scale is not enough to call a technology “sustainable”. We thus evaluate the sustainability of the production of the new “AquaSun” antifouling sol–gel coating with reference to each of the three main dimensions (economic, social, and environmental) of sustainable development. This study will hopefully assist in overcoming the “not invented here” syndrome that still affects many sol–gel technologies, including antifouling coatings derived via the sol–gel process.

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Economic assessment of the production of subcritically dried silica-based aerogels

Cited by 34 publications

References 14 publications

In-Situ Tests on Silica Aerogel-Based Rendering Walls

In-Situ Tests on Silica Aerogel-Based Rendering Walls

Nanomaterials’ Influence on the Performance of Thermal Insulating Mortars—A Statistical Analysis

Sustainability Evaluation of AquaSun Antifouling Coating Production

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