Industrial Waste Pretreatment Approach for 3D Printing of Sustainable Building Materials
The large volume of industrial by-products and wastes from the construction, timber and paper industries has become a serious challenge worldwide. Recycling these industrial wastes as functional materials in the construction industry is an efficient approach for sustainable development. This study p...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Urban Science |
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| Online Access: | https://www.mdpi.com/2413-8851/6/3/50 |
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| author | Qaisar Munir Sanaz Afshariantorghabeh Timo Kärki |
| author_facet | Qaisar Munir Sanaz Afshariantorghabeh Timo Kärki |
| author_sort | Qaisar Munir |
| collection | DOAJ |
| description | The large volume of industrial by-products and wastes from the construction, timber and paper industries has become a serious challenge worldwide. Recycling these industrial wastes as functional materials in the construction industry is an efficient approach for sustainable development. This study presents a pretreatment approach for recycling construction and demolition waste (CDW) and industrial side-streams (such as green liquor sludge, fiber waste, flotation sand and fly ash) in order to produce a geopolymer for the 3D printing of construction materials. A treatment approach was developed for screening the residues from CDW with a maximum size of 16 mm and for a combined line treatment for industrial side streams. The treatment processes utilized suitable and economical separation techniques for the recycling of waste materials. The crushing of the screened residues resulted in a homogeneous material size that facilitates the separation of mixed wastes and simplifies the classification of materials. The combined plant enabled the cost-effective treatment of various industrial wastes in a single process unit. The results show that the economic and environmental impact of the chosen techniques, in terms of their energy consumption, is highly dependent on the treatment line, separation technique and quantity of the individual waste that is processed. These recycled industrial wastes can be used as sustainable materials for the production of geopolymer concrete, contributing to the sustainability of the construction industry. |
| first_indexed | 2024-03-09T22:18:23Z |
| format | Article |
| id | doaj.art-99600821a3114ebba0996ada6a9c75c3 |
| institution | Directory Open Access Journal |
| issn | 2413-8851 |
| language | English |
| last_indexed | 2024-03-09T22:18:23Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Urban Science |
| spelling | doaj.art-99600821a3114ebba0996ada6a9c75c32023-11-23T19:19:33ZengMDPI AGUrban Science2413-88512022-08-01635010.3390/urbansci6030050Industrial Waste Pretreatment Approach for 3D Printing of Sustainable Building MaterialsQaisar Munir0Sanaz Afshariantorghabeh1Timo Kärki2Fiber Composite Laboratory, LUT School of Energy Systems, Lappeenranta-Lahti University of Technology, 53850 Lappeenranta, FinlandFiber Composite Laboratory, LUT School of Energy Systems, Lappeenranta-Lahti University of Technology, 53850 Lappeenranta, FinlandFiber Composite Laboratory, LUT School of Energy Systems, Lappeenranta-Lahti University of Technology, 53850 Lappeenranta, FinlandThe large volume of industrial by-products and wastes from the construction, timber and paper industries has become a serious challenge worldwide. Recycling these industrial wastes as functional materials in the construction industry is an efficient approach for sustainable development. This study presents a pretreatment approach for recycling construction and demolition waste (CDW) and industrial side-streams (such as green liquor sludge, fiber waste, flotation sand and fly ash) in order to produce a geopolymer for the 3D printing of construction materials. A treatment approach was developed for screening the residues from CDW with a maximum size of 16 mm and for a combined line treatment for industrial side streams. The treatment processes utilized suitable and economical separation techniques for the recycling of waste materials. The crushing of the screened residues resulted in a homogeneous material size that facilitates the separation of mixed wastes and simplifies the classification of materials. The combined plant enabled the cost-effective treatment of various industrial wastes in a single process unit. The results show that the economic and environmental impact of the chosen techniques, in terms of their energy consumption, is highly dependent on the treatment line, separation technique and quantity of the individual waste that is processed. These recycled industrial wastes can be used as sustainable materials for the production of geopolymer concrete, contributing to the sustainability of the construction industry.https://www.mdpi.com/2413-8851/6/3/50construction and demolition wasteindustrial side streamsrecyclingpretreatmentsustainable construction materials3D printing |
| spellingShingle | Qaisar Munir Sanaz Afshariantorghabeh Timo Kärki Industrial Waste Pretreatment Approach for 3D Printing of Sustainable Building Materials Urban Science construction and demolition waste industrial side streams recycling pretreatment sustainable construction materials 3D printing |
| title | Industrial Waste Pretreatment Approach for 3D Printing of Sustainable Building Materials |
| title_full | Industrial Waste Pretreatment Approach for 3D Printing of Sustainable Building Materials |
| title_fullStr | Industrial Waste Pretreatment Approach for 3D Printing of Sustainable Building Materials |
| title_full_unstemmed | Industrial Waste Pretreatment Approach for 3D Printing of Sustainable Building Materials |
| title_short | Industrial Waste Pretreatment Approach for 3D Printing of Sustainable Building Materials |
| title_sort | industrial waste pretreatment approach for 3d printing of sustainable building materials |
| topic | construction and demolition waste industrial side streams recycling pretreatment sustainable construction materials 3D printing |
| url | https://www.mdpi.com/2413-8851/6/3/50 |
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