Microstructure of Concretes Cast in the Canadian Arctic: Role of CaCl2 Used as an Anti-Freezing Agent
ABSTRACT Two concretes were made in the Canadian Arctic at sub-freezing temperature using an unusually high amount of calcium chloride, about 9% of the cement mass. Calcium chloride in such a high dosage was mainly used as an antifreezing admixture, because it was impossible to heat the cement and t...
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Language: | English |
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Springer Science and Business Media LLC
1986
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Online Access: | http://dx.doi.org/10.1557/proc-85-77 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1946427400453546 |
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crspringernat:10.1557/proc-85-77 2023-05-15T14:55:19+02:00 Microstructure of Concretes Cast in the Canadian Arctic: Role of CaCl2 Used as an Anti-Freezing Agent Regourd, M. Hornain, H. Aitcin, P.-C. 1986 http://dx.doi.org/10.1557/proc-85-77 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1946427400453546 en eng Springer Science and Business Media LLC https://www.cambridge.org/core/terms MRS Proceedings volume 85 ISSN 0272-9172 1946-4274 General Engineering journal-article 1986 crspringernat https://doi.org/10.1557/proc-85-77 2022-01-04T15:14:49Z ABSTRACT Two concretes were made in the Canadian Arctic at sub-freezing temperature using an unusually high amount of calcium chloride, about 9% of the cement mass. Calcium chloride in such a high dosage was mainly used as an antifreezing admixture, because it was impossible to heat the cement and the aggregates prior to the batching and cure the concrete properly after its pouring. One of these two concretes was cast inside a mine, where the temperature is about −10°C all year round. After one year of service, the strength of this concrete was determined to be 39 MPa at room temperature. The second one was cast outside the mine at −30°C during winter and was exposed to temperatures above 0°C the following summer. After one winter of service the strength of this was 5 MPa. These two concretes were examined under the SEM and show quite a dense microstructures containing chloroaluminates. Article in Journal/Newspaper Arctic Springer Nature (via Crossref) Arctic MRS Proceedings 85 |
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Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
General Engineering |
spellingShingle |
General Engineering Regourd, M. Hornain, H. Aitcin, P.-C. Microstructure of Concretes Cast in the Canadian Arctic: Role of CaCl2 Used as an Anti-Freezing Agent |
topic_facet |
General Engineering |
description |
ABSTRACT Two concretes were made in the Canadian Arctic at sub-freezing temperature using an unusually high amount of calcium chloride, about 9% of the cement mass. Calcium chloride in such a high dosage was mainly used as an antifreezing admixture, because it was impossible to heat the cement and the aggregates prior to the batching and cure the concrete properly after its pouring. One of these two concretes was cast inside a mine, where the temperature is about −10°C all year round. After one year of service, the strength of this concrete was determined to be 39 MPa at room temperature. The second one was cast outside the mine at −30°C during winter and was exposed to temperatures above 0°C the following summer. After one winter of service the strength of this was 5 MPa. These two concretes were examined under the SEM and show quite a dense microstructures containing chloroaluminates. |
format |
Article in Journal/Newspaper |
author |
Regourd, M. Hornain, H. Aitcin, P.-C. |
author_facet |
Regourd, M. Hornain, H. Aitcin, P.-C. |
author_sort |
Regourd, M. |
title |
Microstructure of Concretes Cast in the Canadian Arctic: Role of CaCl2 Used as an Anti-Freezing Agent |
title_short |
Microstructure of Concretes Cast in the Canadian Arctic: Role of CaCl2 Used as an Anti-Freezing Agent |
title_full |
Microstructure of Concretes Cast in the Canadian Arctic: Role of CaCl2 Used as an Anti-Freezing Agent |
title_fullStr |
Microstructure of Concretes Cast in the Canadian Arctic: Role of CaCl2 Used as an Anti-Freezing Agent |
title_full_unstemmed |
Microstructure of Concretes Cast in the Canadian Arctic: Role of CaCl2 Used as an Anti-Freezing Agent |
title_sort |
microstructure of concretes cast in the canadian arctic: role of cacl2 used as an anti-freezing agent |
publisher |
Springer Science and Business Media LLC |
publishDate |
1986 |
url |
http://dx.doi.org/10.1557/proc-85-77 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1946427400453546 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
MRS Proceedings volume 85 ISSN 0272-9172 1946-4274 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1557/proc-85-77 |
container_title |
MRS Proceedings |
container_volume |
85 |
_version_ |
1766327108855922688 |