Development of lightweight insulating building materials from perlite wastes
This paper investigates the development of geopolymer foam boards, using perlite wastes as raw material. This type of lightweight materials combines the geopolymerization technology with the foaming process. The mechanism of foaming is based on the generation of a gas that is retained by the geopoly...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2019-03-01
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| Series: | Materiales de Construccion |
| Subjects: | |
| Online Access: | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2239 |
| _version_ | 1818591439202811904 |
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| author | G. M. Tsaousi L. Profitis I. Douni E. Chatzitheodorides D. Panias |
| author_facet | G. M. Tsaousi L. Profitis I. Douni E. Chatzitheodorides D. Panias |
| author_sort | G. M. Tsaousi |
| collection | DOAJ |
| description | This paper investigates the development of geopolymer foam boards, using perlite wastes as raw material. This type of lightweight materials combines the geopolymerization technology with the foaming process. The mechanism of foaming is based on the generation of a gas that is retained by the geopolymer matrix in the form of individual or interconnected voids. In this study, the inorganic foaming agent is hydrogen peroxide (H2O2), which is added into the initial paste in different quantities by mechanical stirring. The produced porous materials have effective densities between 408–476.5 kg/m3, thermal conductivities between 0.076–0.095 W/m.K and different type of microstructure, depending on the concentration of the activator and the foaming agent content. To assess the porosity and the size distribution of the voids, image processing techniques were applied on digital images of the samples. According to these results, the synthesized lightweight materials exhibit similar or even better thermal properties than the current concrete porous materials. |
| first_indexed | 2024-12-16T10:12:27Z |
| format | Article |
| id | doaj.art-3ea9b83e14514a2a88816af1011f491e |
| institution | Directory Open Access Journal |
| issn | 0465-2746 1988-3226 |
| language | English |
| last_indexed | 2024-12-16T10:12:27Z |
| publishDate | 2019-03-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Materiales de Construccion |
| spelling | doaj.art-3ea9b83e14514a2a88816af1011f491e2022-12-21T22:35:33ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262019-03-0169333e175e17510.3989/mc.20198.125172164Development of lightweight insulating building materials from perlite wastesG. M. Tsaousi0https://orcid.org/0000-0002-4985-968XL. Profitis1https://orcid.org/0000-0002-9686-4449I. Douni2https://orcid.org/0000-0001-9602-5429E. Chatzitheodorides3https://orcid.org/0000-0003-1180-5456D. Panias4https://orcid.org/0000-0002-0432-6900National Technical University of AthensNational Technical University of AthensNational Technical University of AthensNational Technical University of AthensNational Technical University of AthensThis paper investigates the development of geopolymer foam boards, using perlite wastes as raw material. This type of lightweight materials combines the geopolymerization technology with the foaming process. The mechanism of foaming is based on the generation of a gas that is retained by the geopolymer matrix in the form of individual or interconnected voids. In this study, the inorganic foaming agent is hydrogen peroxide (H2O2), which is added into the initial paste in different quantities by mechanical stirring. The produced porous materials have effective densities between 408–476.5 kg/m3, thermal conductivities between 0.076–0.095 W/m.K and different type of microstructure, depending on the concentration of the activator and the foaming agent content. To assess the porosity and the size distribution of the voids, image processing techniques were applied on digital images of the samples. According to these results, the synthesized lightweight materials exhibit similar or even better thermal properties than the current concrete porous materials.http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2239geopolymerizationfoaminginorganiclightweight |
| spellingShingle | G. M. Tsaousi L. Profitis I. Douni E. Chatzitheodorides D. Panias Development of lightweight insulating building materials from perlite wastes Materiales de Construccion geopolymerization foaming inorganic lightweight |
| title | Development of lightweight insulating building materials from perlite wastes |
| title_full | Development of lightweight insulating building materials from perlite wastes |
| title_fullStr | Development of lightweight insulating building materials from perlite wastes |
| title_full_unstemmed | Development of lightweight insulating building materials from perlite wastes |
| title_short | Development of lightweight insulating building materials from perlite wastes |
| title_sort | development of lightweight insulating building materials from perlite wastes |
| topic | geopolymerization foaming inorganic lightweight |
| url | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2239 |
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