Life cycle assessment to produce LC³ cements with kaolinitic waste from the Amazon region, Brazil
The present study was developed with the aim of determining the environmental impact of the production process (cradle-to-gate) of Limestone Calcined Clay Cements (LC³) produced with kaolinitic residues from the Brazilian Amazon, through a life cycle assessment (LCA). For this purpose, 6 LC³ mixture...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509522008610 |
| _version_ | 1797798995043549184 |
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| author | Euler Santos Arruda Junior Nállyton Tiago de Sales Braga Márcio Santos Barata |
| author_facet | Euler Santos Arruda Junior Nállyton Tiago de Sales Braga Márcio Santos Barata |
| author_sort | Euler Santos Arruda Junior |
| collection | DOAJ |
| description | The present study was developed with the aim of determining the environmental impact of the production process (cradle-to-gate) of Limestone Calcined Clay Cements (LC³) produced with kaolinitic residues from the Brazilian Amazon, through a life cycle assessment (LCA). For this purpose, 6 LC³ mixtures were prepared from combinations of clinker, gypsum, and metakaolin: limestone filler in the ratios 2:1, 1.5:1 and 1:1, replacing 45% and 60% Ordinary Portland Cement (OPC). The LC³ cements were compared with two cements already produced industrially. CO2 emissions associated with the transportation of raw materials to produce LC³ cements increased significantly, especially for the cements where 60% clinker was substituted, with CO2 emissions up to 2–3 times higher than for the reference cements. Despite that, LC³ cements showed a reduction in energy demand of up to 28% and total CO2 emissions of up to 38% compared to commercial cements. In this way, the conducted study demonstrates the high environmental potential of LC³ cements with kaolinitic residues from the Amazon region for reducing pollutant emissions in the manufacture of cement. |
| first_indexed | 2024-03-13T04:12:17Z |
| format | Article |
| id | doaj.art-27c67969931e4cbc87642b455c247af3 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-13T04:12:17Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-27c67969931e4cbc87642b455c247af32023-06-21T06:53:00ZengElsevierCase Studies in Construction Materials2214-50952023-07-0118e01729Life cycle assessment to produce LC³ cements with kaolinitic waste from the Amazon region, BrazilEuler Santos Arruda Junior0Nállyton Tiago de Sales Braga1Márcio Santos Barata2Corresponding author.; Post-Graduate Program in Architecture and Urbanism, Federal University of Pará, Augusto Corrêa Street, 1, BrazilPost-Graduate Program in Architecture and Urbanism, Federal University of Pará, Augusto Corrêa Street, 1, BrazilPost-Graduate Program in Architecture and Urbanism, Federal University of Pará, Augusto Corrêa Street, 1, BrazilThe present study was developed with the aim of determining the environmental impact of the production process (cradle-to-gate) of Limestone Calcined Clay Cements (LC³) produced with kaolinitic residues from the Brazilian Amazon, through a life cycle assessment (LCA). For this purpose, 6 LC³ mixtures were prepared from combinations of clinker, gypsum, and metakaolin: limestone filler in the ratios 2:1, 1.5:1 and 1:1, replacing 45% and 60% Ordinary Portland Cement (OPC). The LC³ cements were compared with two cements already produced industrially. CO2 emissions associated with the transportation of raw materials to produce LC³ cements increased significantly, especially for the cements where 60% clinker was substituted, with CO2 emissions up to 2–3 times higher than for the reference cements. Despite that, LC³ cements showed a reduction in energy demand of up to 28% and total CO2 emissions of up to 38% compared to commercial cements. In this way, the conducted study demonstrates the high environmental potential of LC³ cements with kaolinitic residues from the Amazon region for reducing pollutant emissions in the manufacture of cement.http://www.sciencedirect.com/science/article/pii/S2214509522008610Life cycle assessmentLC³Kaolinitic residuesMetakaoliniteAmazon |
| spellingShingle | Euler Santos Arruda Junior Nállyton Tiago de Sales Braga Márcio Santos Barata Life cycle assessment to produce LC³ cements with kaolinitic waste from the Amazon region, Brazil Case Studies in Construction Materials Life cycle assessment LC³ Kaolinitic residues Metakaolinite Amazon |
| title | Life cycle assessment to produce LC³ cements with kaolinitic waste from the Amazon region, Brazil |
| title_full | Life cycle assessment to produce LC³ cements with kaolinitic waste from the Amazon region, Brazil |
| title_fullStr | Life cycle assessment to produce LC³ cements with kaolinitic waste from the Amazon region, Brazil |
| title_full_unstemmed | Life cycle assessment to produce LC³ cements with kaolinitic waste from the Amazon region, Brazil |
| title_short | Life cycle assessment to produce LC³ cements with kaolinitic waste from the Amazon region, Brazil |
| title_sort | life cycle assessment to produce lc³ cements with kaolinitic waste from the amazon region brazil |
| topic | Life cycle assessment LC³ Kaolinitic residues Metakaolinite Amazon |
| url | http://www.sciencedirect.com/science/article/pii/S2214509522008610 |
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