The Effect of Mineral Wool Fiber Additive on Several Mechanical Properties and Thermal Conductivity in Geopolymer Binder
The article discusses the effect of additives of waste mineral wool fibers on geopolymer binder. This is an important study in terms of the possibility of recycling mineral wool waste. The paper describes an effective method for pulverizing the wool and the methodology for forming geopolymer samples...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/17/2/483 |
| _version_ | 1797343056277536768 |
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| author | Beata Łaźniewska-Piekarczyk Dominik Smyczek |
| author_facet | Beata Łaźniewska-Piekarczyk Dominik Smyczek |
| author_sort | Beata Łaźniewska-Piekarczyk |
| collection | DOAJ |
| description | The article discusses the effect of additives of waste mineral wool fibers on geopolymer binder. This is an important study in terms of the possibility of recycling mineral wool waste. The paper describes an effective method for pulverizing the wool and the methodology for forming geopolymer samples, labeled G1 for glass-wool-based geopolymer and G2 for stone-wool-based geopolymer. The compressive and flexural strengths and thermal conductivity coefficient of the geopolymer with the addition of mineral fibers were determined. The key element of the article is to verify whether the addition of mineral wool fibers positively affects the properties of the geopolymer. The results obtained prove that the addition of fibers significantly improves the flexural strength. For the G1 formulation, the ratio of compressive strength to flexural strength is 18.7%. However, for G2 samples, an even better ratio of compressive strength to flexural strength values of 26.3% was obtained. The average thermal conductivity coefficient obtained was 1.053 W/(m·K) for the G1 series samples and 0.953 W/(m·K) for the G2 series samples. The conclusions obtained show a correlation between the porosity and compressive strength and thermal conductivity coefficient. The higher the porosity, the better the thermal insulation of the material and the weaker the compressive strength. |
| first_indexed | 2024-03-08T10:42:09Z |
| format | Article |
| id | doaj.art-47b4e3eb7d2944edbeb7bccd89fd15b8 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-08T10:42:09Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-47b4e3eb7d2944edbeb7bccd89fd15b82024-01-26T17:30:19ZengMDPI AGMaterials1996-19442024-01-0117248310.3390/ma17020483The Effect of Mineral Wool Fiber Additive on Several Mechanical Properties and Thermal Conductivity in Geopolymer BinderBeata Łaźniewska-Piekarczyk0Dominik Smyczek1Department of Building Processes and Building Physics, Faculty of Civil Engineering, The Silesian University of Technology, Akademicka 5, 44-100 Gliwice, PolandDepartment of Building Processes and Building Physics, Faculty of Civil Engineering, The Silesian University of Technology, Akademicka 5, 44-100 Gliwice, PolandThe article discusses the effect of additives of waste mineral wool fibers on geopolymer binder. This is an important study in terms of the possibility of recycling mineral wool waste. The paper describes an effective method for pulverizing the wool and the methodology for forming geopolymer samples, labeled G1 for glass-wool-based geopolymer and G2 for stone-wool-based geopolymer. The compressive and flexural strengths and thermal conductivity coefficient of the geopolymer with the addition of mineral fibers were determined. The key element of the article is to verify whether the addition of mineral wool fibers positively affects the properties of the geopolymer. The results obtained prove that the addition of fibers significantly improves the flexural strength. For the G1 formulation, the ratio of compressive strength to flexural strength is 18.7%. However, for G2 samples, an even better ratio of compressive strength to flexural strength values of 26.3% was obtained. The average thermal conductivity coefficient obtained was 1.053 W/(m·K) for the G1 series samples and 0.953 W/(m·K) for the G2 series samples. The conclusions obtained show a correlation between the porosity and compressive strength and thermal conductivity coefficient. The higher the porosity, the better the thermal insulation of the material and the weaker the compressive strength.https://www.mdpi.com/1996-1944/17/2/483geopolymermineral wool wastemechanical propertiesthermal conductivity coefficientmineral wool pulverization |
| spellingShingle | Beata Łaźniewska-Piekarczyk Dominik Smyczek The Effect of Mineral Wool Fiber Additive on Several Mechanical Properties and Thermal Conductivity in Geopolymer Binder Materials geopolymer mineral wool waste mechanical properties thermal conductivity coefficient mineral wool pulverization |
| title | The Effect of Mineral Wool Fiber Additive on Several Mechanical Properties and Thermal Conductivity in Geopolymer Binder |
| title_full | The Effect of Mineral Wool Fiber Additive on Several Mechanical Properties and Thermal Conductivity in Geopolymer Binder |
| title_fullStr | The Effect of Mineral Wool Fiber Additive on Several Mechanical Properties and Thermal Conductivity in Geopolymer Binder |
| title_full_unstemmed | The Effect of Mineral Wool Fiber Additive on Several Mechanical Properties and Thermal Conductivity in Geopolymer Binder |
| title_short | The Effect of Mineral Wool Fiber Additive on Several Mechanical Properties and Thermal Conductivity in Geopolymer Binder |
| title_sort | effect of mineral wool fiber additive on several mechanical properties and thermal conductivity in geopolymer binder |
| topic | geopolymer mineral wool waste mechanical properties thermal conductivity coefficient mineral wool pulverization |
| url | https://www.mdpi.com/1996-1944/17/2/483 |
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