Alkali activated materials based on glass waste and slag for thermal and acoustic insulation
Porous alkali activated materials (AAM), can be obtained from waste glass powder and slag mixtures by alkali activation with NaOH solution. To obtain an adequate porous microstructure, the hardened AAM pastes were thermally treated at temperatures ranging between 900°C and 1000°C, for 60 or 30 minut...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2019-09-01
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| Series: | Materiales de Construccion |
| Subjects: | |
| Online Access: | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2259 |
| _version_ | 1818717539936501760 |
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| author | S. Stoleriu I. N. Vlasceanu C. Dima A. I. Badanoiu G. Voicu |
| author_facet | S. Stoleriu I. N. Vlasceanu C. Dima A. I. Badanoiu G. Voicu |
| author_sort | S. Stoleriu |
| collection | DOAJ |
| description | Porous alkali activated materials (AAM), can be obtained from waste glass powder and slag mixtures by alkali activation with NaOH solution. To obtain an adequate porous microstructure, the hardened AAM pastes were thermally treated at temperatures ranging between 900°C and 1000°C, for 60 or 30 minutes. Due to the intumescent behaviour specific for this type of materials, an important increase of the volume and porosity occurs during the thermal treatment.
The partial substitution of waste glass powder with slag, determines the increase of compressive strength assessed before (up to 37 MPa) and after (around 10 MPa) thermal treatment; the increase of slag dosage also determines the increase of the activation temperature of the intumescent process (above 950°C).
The high porosity and the specific microstructure (closed pores with various shapes and sizes) of these materials recommend them to be utilised as thermal and acoustical insulation materials. |
| first_indexed | 2024-12-17T19:36:46Z |
| format | Article |
| id | doaj.art-5b68bfbf1ce640109c95757a9364c9ac |
| institution | Directory Open Access Journal |
| issn | 0465-2746 1988-3226 |
| language | English |
| last_indexed | 2024-12-17T19:36:46Z |
| publishDate | 2019-09-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Materiales de Construccion |
| spelling | doaj.art-5b68bfbf1ce640109c95757a9364c9ac2022-12-21T21:35:07ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262019-09-0169335e194e19410.3989/mc.2019.085182184Alkali activated materials based on glass waste and slag for thermal and acoustic insulationS. Stoleriu0https://orcid.org/0000-0003-3553-2034I. N. Vlasceanu1https://orcid.org/0000-0001-8611-2027C. Dima2https://orcid.org/0000-0003-1295-5034A. I. Badanoiu3https://orcid.org/0000-0002-9091-3692G. Voicu4https://orcid.org/0000-0001-7155-7138Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politechnica of BucharestDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politechnica of BucharestDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politechnica of BucharestDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politechnica of BucharestDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politechnica of BucharestPorous alkali activated materials (AAM), can be obtained from waste glass powder and slag mixtures by alkali activation with NaOH solution. To obtain an adequate porous microstructure, the hardened AAM pastes were thermally treated at temperatures ranging between 900°C and 1000°C, for 60 or 30 minutes. Due to the intumescent behaviour specific for this type of materials, an important increase of the volume and porosity occurs during the thermal treatment. The partial substitution of waste glass powder with slag, determines the increase of compressive strength assessed before (up to 37 MPa) and after (around 10 MPa) thermal treatment; the increase of slag dosage also determines the increase of the activation temperature of the intumescent process (above 950°C). The high porosity and the specific microstructure (closed pores with various shapes and sizes) of these materials recommend them to be utilised as thermal and acoustical insulation materials.http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2259alkali activated materialsfoamglass-wastethermal and acoustical insulation |
| spellingShingle | S. Stoleriu I. N. Vlasceanu C. Dima A. I. Badanoiu G. Voicu Alkali activated materials based on glass waste and slag for thermal and acoustic insulation Materiales de Construccion alkali activated materials foam glass-waste thermal and acoustical insulation |
| title | Alkali activated materials based on glass waste and slag for thermal and acoustic insulation |
| title_full | Alkali activated materials based on glass waste and slag for thermal and acoustic insulation |
| title_fullStr | Alkali activated materials based on glass waste and slag for thermal and acoustic insulation |
| title_full_unstemmed | Alkali activated materials based on glass waste and slag for thermal and acoustic insulation |
| title_short | Alkali activated materials based on glass waste and slag for thermal and acoustic insulation |
| title_sort | alkali activated materials based on glass waste and slag for thermal and acoustic insulation |
| topic | alkali activated materials foam glass-waste thermal and acoustical insulation |
| url | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2259 |
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