The role of tricalcium aluminate and gypsum dehydration level in cement for effective air entrainment of concrete.
In: Road Materials & Pavement Design, Jg. 25 (2024-02-01), Heft 2, S. 362-374
academicJournal
Zugriff:
In this paper, the role of tricalcium aluminate (C 3 A) and gypsum dehydration level in the air-entraining mechanism in concrete was studied. A higher-performance air system was achieved when anionic surfactant was used, C 3 A content was higher and gypsum dehydration didn't occur. Adsorption on cement particles dominates the air-entraining mechanism when anionic admixture is used. Anionic surfactant performs higher quality air microstructure than cationic, despite much lower surface tension reduction. Thus, the adsorption of admixture had a major role in the effective air-entraining mechanism process. This effect has significant implications on the selection of the best-suited surfactants, cement optimum composition and the cement production procedure for the highest frost resistance concretes used for roads and bridges. [ABSTRACT FROM AUTHOR]
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Titel: |
The role of tricalcium aluminate and gypsum dehydration level in cement for effective air entrainment of concrete.
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Autor/in / Beteiligte Person: | Sypek, Maciej ; Latawiec, Rafał ; Łój, Grzegorz ; Pichór, Waldemar |
Zeitschrift: | Road Materials & Pavement Design, Jg. 25 (2024-02-01), Heft 2, S. 362-374 |
Veröffentlichung: | 2024 |
Medientyp: | academicJournal |
ISSN: | 1468-0629 (print) |
DOI: | 10.1080/14680629.2023.2207663 |
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