Construction and Demolition Residuals as Raw Materials for the Production of Novel Geopolymer Building Materials
The increasing number of new construction projects requiring high-quality building products, which, in turn, emit enormous amounts of CO<sub>2</sub>, runs counter to European and global climate goals. The increasing occupation of valuable landfill space is also an ecological problem. To...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/12/5/678 |
| _version_ | 1797500480735150080 |
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| author | Felix Kugler Jessica Aumüller Wolfgang Krcmar Ulrich Teipel |
| author_facet | Felix Kugler Jessica Aumüller Wolfgang Krcmar Ulrich Teipel |
| author_sort | Felix Kugler |
| collection | DOAJ |
| description | The increasing number of new construction projects requiring high-quality building products, which, in turn, emit enormous amounts of CO<sub>2</sub>, runs counter to European and global climate goals. The increasing occupation of valuable landfill space is also an ecological problem. To meet these challenges without having to lower living standards, more ecological building materials should be used in the future. Geopolymers or alkali-activated materials, which, unlike conventional building materials, can be produced and used without a prior burning or calcination process, offer a comparatively low-CO<sub>2</sub> alternative. Significant CO<sub>2</sub> emissions can already be saved by using this technology. The aim of this work is to investigate whether geopolymers can also be produced from construction and demolition residuals generated by the construction industry in order to counteract the problem of the increasing use of landfill space and, at the same time, to further reduce greenhouse gas emissions in the production of building materials. For this purpose, various residual materials from the construction and demolition industry are investigated by means of XRF, XRD, and IR spectroscopy for their setting behavior by alkaline activation. At the same time, the characteristic values of compressive strength, flexural strength, bulk density, and thermal conductivity, which are important for building materials, are determined in order to test the possible applications of the resulting materials as building materials. |
| first_indexed | 2024-03-10T03:04:27Z |
| format | Article |
| id | doaj.art-0aec312d880342b1a5831b5ecf2e431a |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T03:04:27Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-0aec312d880342b1a5831b5ecf2e431a2023-11-23T10:35:22ZengMDPI AGCrystals2073-43522022-05-0112567810.3390/cryst12050678Construction and Demolition Residuals as Raw Materials for the Production of Novel Geopolymer Building MaterialsFelix Kugler0Jessica Aumüller1Wolfgang Krcmar2Ulrich Teipel3Faculty of Materials Engineering, Nuremberg University of Technology, 90489 Nuremberg, GermanyFaculty of Materials Engineering, Nuremberg University of Technology, 90489 Nuremberg, GermanyFaculty of Materials Engineering, Nuremberg University of Technology, 90489 Nuremberg, GermanyFaculty of Materials Engineering, Nuremberg University of Technology, 90489 Nuremberg, GermanyThe increasing number of new construction projects requiring high-quality building products, which, in turn, emit enormous amounts of CO<sub>2</sub>, runs counter to European and global climate goals. The increasing occupation of valuable landfill space is also an ecological problem. To meet these challenges without having to lower living standards, more ecological building materials should be used in the future. Geopolymers or alkali-activated materials, which, unlike conventional building materials, can be produced and used without a prior burning or calcination process, offer a comparatively low-CO<sub>2</sub> alternative. Significant CO<sub>2</sub> emissions can already be saved by using this technology. The aim of this work is to investigate whether geopolymers can also be produced from construction and demolition residuals generated by the construction industry in order to counteract the problem of the increasing use of landfill space and, at the same time, to further reduce greenhouse gas emissions in the production of building materials. For this purpose, various residual materials from the construction and demolition industry are investigated by means of XRF, XRD, and IR spectroscopy for their setting behavior by alkaline activation. At the same time, the characteristic values of compressive strength, flexural strength, bulk density, and thermal conductivity, which are important for building materials, are determined in order to test the possible applications of the resulting materials as building materials.https://www.mdpi.com/2073-4352/12/5/678geopolymerresidual materialbuilding materialcircular economyCO<sub>2</sub>-reduction |
| spellingShingle | Felix Kugler Jessica Aumüller Wolfgang Krcmar Ulrich Teipel Construction and Demolition Residuals as Raw Materials for the Production of Novel Geopolymer Building Materials Crystals geopolymer residual material building material circular economy CO<sub>2</sub>-reduction |
| title | Construction and Demolition Residuals as Raw Materials for the Production of Novel Geopolymer Building Materials |
| title_full | Construction and Demolition Residuals as Raw Materials for the Production of Novel Geopolymer Building Materials |
| title_fullStr | Construction and Demolition Residuals as Raw Materials for the Production of Novel Geopolymer Building Materials |
| title_full_unstemmed | Construction and Demolition Residuals as Raw Materials for the Production of Novel Geopolymer Building Materials |
| title_short | Construction and Demolition Residuals as Raw Materials for the Production of Novel Geopolymer Building Materials |
| title_sort | construction and demolition residuals as raw materials for the production of novel geopolymer building materials |
| topic | geopolymer residual material building material circular economy CO<sub>2</sub>-reduction |
| url | https://www.mdpi.com/2073-4352/12/5/678 |
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