Carbonation of concretes containing LC³ cements with different supplementary materials
Due to the clinkerization process during the Portland cement production, large amounts of CO2 are emitted, increasing the effects related to climate change (approximately 5-10% of global CO2 emissions come from cement production), consequently, the seek for alternatives to mitigate these high emiss...
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2022-12-01
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| Series: | Semina: Ciências Exatas e Tecnológicas |
| Subjects: | |
| Online Access: | https://ojs.uel.br/revistas/uel/index.php/semexatas/article/view/46760 |
| _version_ | 1797951687804059648 |
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| author | Carlos Eduardo Tino Balestra Gustavo Savaris Alberto Yoshihiro Nakano Ricardo Schneider |
| author_facet | Carlos Eduardo Tino Balestra Gustavo Savaris Alberto Yoshihiro Nakano Ricardo Schneider |
| author_sort | Carlos Eduardo Tino Balestra |
| collection | DOAJ |
| description |
Due to the clinkerization process during the Portland cement production, large amounts of CO2 are emitted, increasing the effects related to climate change (approximately 5-10% of global CO2 emissions come from cement production), consequently, the seek for alternatives to mitigate these high emissions are necessary. The use of supplementary cementitious materials (SCM) to partial replace of Portand clinker/cement has been the subject of different research, including the use of LC3 cements (Limestone Calcined Clay Cements), where up to 50% of Portland clinker can be replaced, however, cement industry has already used other
supplementary cementitious materials with pozzolanic activities in commercial cements. In this sense, this work evaluates the performance of concretes containing LC3 mixtures with the presence of different SCM (silica fume, fly ash, sugarcane bagasse ash and açaí stone ash) regarding durability issues by carbonation. The results showed that all concretes with LC3 presented higher carbonation fronts in relation to the reference concrete, with Portland cement, due to the lower availability of calcium to react with the CO2 that penetrates into the concrete pores, so the adoption of curing procedures and coatings are recommended.
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| first_indexed | 2024-04-10T22:34:32Z |
| format | Article |
| id | doaj.art-e03d768edd444af7928aaaf07c1ecf30 |
| institution | Directory Open Access Journal |
| issn | 1676-5451 1679-0375 |
| language | English |
| last_indexed | 2024-04-10T22:34:32Z |
| publishDate | 2022-12-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Exatas e Tecnológicas |
| spelling | doaj.art-e03d768edd444af7928aaaf07c1ecf302023-01-16T15:53:00ZengUniversidade Estadual de LondrinaSemina: Ciências Exatas e Tecnológicas1676-54511679-03752022-12-0143210.5433/1679-0375.2022v43n2p161Carbonation of concretes containing LC³ cements with different supplementary materialsCarlos Eduardo Tino Balestra0Gustavo Savaris1Alberto Yoshihiro Nakano2Ricardo Schneider3Universidade Tecnológica Federal do Paraná - UTFPrUniversidade Tecnológica Federal do Paraná - UTFPrUniversidade Tecnológica Federal do Paraná - UTFPrUniversidade Tecnológica Federal do Paraná - UTFPr Due to the clinkerization process during the Portland cement production, large amounts of CO2 are emitted, increasing the effects related to climate change (approximately 5-10% of global CO2 emissions come from cement production), consequently, the seek for alternatives to mitigate these high emissions are necessary. The use of supplementary cementitious materials (SCM) to partial replace of Portand clinker/cement has been the subject of different research, including the use of LC3 cements (Limestone Calcined Clay Cements), where up to 50% of Portland clinker can be replaced, however, cement industry has already used other supplementary cementitious materials with pozzolanic activities in commercial cements. In this sense, this work evaluates the performance of concretes containing LC3 mixtures with the presence of different SCM (silica fume, fly ash, sugarcane bagasse ash and açaí stone ash) regarding durability issues by carbonation. The results showed that all concretes with LC3 presented higher carbonation fronts in relation to the reference concrete, with Portland cement, due to the lower availability of calcium to react with the CO2 that penetrates into the concrete pores, so the adoption of curing procedures and coatings are recommended. https://ojs.uel.br/revistas/uel/index.php/semexatas/article/view/46760concreteLC³-50metakaolinsupplementary cimenticious materialsclinker |
| spellingShingle | Carlos Eduardo Tino Balestra Gustavo Savaris Alberto Yoshihiro Nakano Ricardo Schneider Carbonation of concretes containing LC³ cements with different supplementary materials Semina: Ciências Exatas e Tecnológicas concrete LC³-50 metakaolin supplementary cimenticious materials clinker |
| title | Carbonation of concretes containing LC³ cements with different supplementary materials |
| title_full | Carbonation of concretes containing LC³ cements with different supplementary materials |
| title_fullStr | Carbonation of concretes containing LC³ cements with different supplementary materials |
| title_full_unstemmed | Carbonation of concretes containing LC³ cements with different supplementary materials |
| title_short | Carbonation of concretes containing LC³ cements with different supplementary materials |
| title_sort | carbonation of concretes containing lc³ cements with different supplementary materials |
| topic | concrete LC³-50 metakaolin supplementary cimenticious materials clinker |
| url | https://ojs.uel.br/revistas/uel/index.php/semexatas/article/view/46760 |
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