Chloride migration and long-term natural carbonation on concretes with calcined clays: A study of calcined clays in Argentina
The use of calcined clays as supplementary cementitious materials is one of the strategies to reduce the CO2 emissions from cement and concrete industry as they provide good mechanical and durable properties after proper calcination and grinding. In Argentina, calcined common brick clays have a sign...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509522003229 |
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| author | Gisela Cordoba Ricarda Sposito Mathias Köberl Silvina Zito Nancy Beuntner Alejandra Tironi Karl-Christian Thienel Edgardo F. Irassar |
| author_facet | Gisela Cordoba Ricarda Sposito Mathias Köberl Silvina Zito Nancy Beuntner Alejandra Tironi Karl-Christian Thienel Edgardo F. Irassar |
| author_sort | Gisela Cordoba |
| collection | DOAJ |
| description | The use of calcined clays as supplementary cementitious materials is one of the strategies to reduce the CO2 emissions from cement and concrete industry as they provide good mechanical and durable properties after proper calcination and grinding. In Argentina, calcined common brick clays have a significant relevance due to their proximity to the largest Portland cement plants. The aim of this study is to analyze the resistance to chloride ingress and natural carbonation up to 36 months of concretes using calcined common brick clay and calcined low-grade kaolinitic clay. The latter exhibits a much lower chloride migration coefficient than the Portland cement concrete from 28 days on, while the calcined common brick clay requires a 90 days curing to obtain lower chloride ingress. Although the blended concretes exhibit greater carbonation depths than the reference after 36 months, it is lower than the given threshold of 10 mm. Hence, durable concretes with calcined clay can be obtained if they are properly cured. |
| first_indexed | 2024-12-12T05:44:34Z |
| format | Article |
| id | doaj.art-1cf6d56cf9be4f99a6b38fe98b00bb2e |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-12-12T05:44:34Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-1cf6d56cf9be4f99a6b38fe98b00bb2e2022-12-22T00:35:50ZengElsevierCase Studies in Construction Materials2214-50952022-12-0117e01190Chloride migration and long-term natural carbonation on concretes with calcined clays: A study of calcined clays in ArgentinaGisela Cordoba0Ricarda Sposito1Mathias Köberl2Silvina Zito3Nancy Beuntner4Alejandra Tironi5Karl-Christian Thienel6Edgardo F. Irassar7Facultad de Ingeniería, CIFICEN (UNCPBA-CICPBA-CONICET), B7400JWI Olavarría, ArgentinaInstitut für Werkstoffe des Bauwesens, Universität der Bundeswehr München, 85577 Neubiberg, Germany; Corresponding author.Institut für Werkstoffe des Bauwesens, Universität der Bundeswehr München, 85577 Neubiberg, GermanyFacultad de Ingeniería, CIFICEN (UNCPBA-CICPBA-CONICET), B7400JWI Olavarría, ArgentinaInstitut für Werkstoffe des Bauwesens, Universität der Bundeswehr München, 85577 Neubiberg, GermanyFacultad de Ingeniería, CIFICEN (UNCPBA-CICPBA-CONICET), B7400JWI Olavarría, ArgentinaInstitut für Werkstoffe des Bauwesens, Universität der Bundeswehr München, 85577 Neubiberg, GermanyFacultad de Ingeniería, CIFICEN (UNCPBA-CICPBA-CONICET), B7400JWI Olavarría, ArgentinaThe use of calcined clays as supplementary cementitious materials is one of the strategies to reduce the CO2 emissions from cement and concrete industry as they provide good mechanical and durable properties after proper calcination and grinding. In Argentina, calcined common brick clays have a significant relevance due to their proximity to the largest Portland cement plants. The aim of this study is to analyze the resistance to chloride ingress and natural carbonation up to 36 months of concretes using calcined common brick clay and calcined low-grade kaolinitic clay. The latter exhibits a much lower chloride migration coefficient than the Portland cement concrete from 28 days on, while the calcined common brick clay requires a 90 days curing to obtain lower chloride ingress. Although the blended concretes exhibit greater carbonation depths than the reference after 36 months, it is lower than the given threshold of 10 mm. Hence, durable concretes with calcined clay can be obtained if they are properly cured.http://www.sciencedirect.com/science/article/pii/S2214509522003229Calcined common brick clayCalcined low-grade kaolinitic clayConcreteChloride ingressCarbonation |
| spellingShingle | Gisela Cordoba Ricarda Sposito Mathias Köberl Silvina Zito Nancy Beuntner Alejandra Tironi Karl-Christian Thienel Edgardo F. Irassar Chloride migration and long-term natural carbonation on concretes with calcined clays: A study of calcined clays in Argentina Case Studies in Construction Materials Calcined common brick clay Calcined low-grade kaolinitic clay Concrete Chloride ingress Carbonation |
| title | Chloride migration and long-term natural carbonation on concretes with calcined clays: A study of calcined clays in Argentina |
| title_full | Chloride migration and long-term natural carbonation on concretes with calcined clays: A study of calcined clays in Argentina |
| title_fullStr | Chloride migration and long-term natural carbonation on concretes with calcined clays: A study of calcined clays in Argentina |
| title_full_unstemmed | Chloride migration and long-term natural carbonation on concretes with calcined clays: A study of calcined clays in Argentina |
| title_short | Chloride migration and long-term natural carbonation on concretes with calcined clays: A study of calcined clays in Argentina |
| title_sort | chloride migration and long term natural carbonation on concretes with calcined clays a study of calcined clays in argentina |
| topic | Calcined common brick clay Calcined low-grade kaolinitic clay Concrete Chloride ingress Carbonation |
| url | http://www.sciencedirect.com/science/article/pii/S2214509522003229 |
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