Szczegóły publikacji
Opis bibliograficzny
Long-term sulfate resistance of synthesized cement systems with variable $C_{3}A/C_{4}AF$ ratio at low temperature or ambient conditions: insights into the crystalline and amorphous phase assemblage / Konstantinos Sotiriadis, Radosław MRÓZ, Petra Mácová, Anton S. Mazur, Andraž Krajnc // Cement and Concrete Research ; ISSN 0008-8846. — 2022 — vol. 160 art. no. 106902, s. 1-14. — Bibliogr. s. 12-14, Abstr. — Publikacja dostępna online od: 2022-07-19
Autorzy (5)
- Sotiriadis Konstantinos
- AGHMróz Radosław
- Mácová Petra
- Mazur Anton S.
- Krajnc Andraž
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 141452 |
|---|---|
| Data dodania do BaDAP | 2022-09-05 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.cemconres.2022.106902 |
| Rok publikacji | 2022 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Cement and Concrete Research |
Abstract
Synthesized cement systems made with variable C3A/C4AF ratios, containing C3S, gypsum and, optionally, calcite, were stored long-term at humid conditions at 5 or 20 °C, without any protection against atmospheric carbonation. Analytical techniques able to assess both the crystalline and amorphous phases were used. Experimental results were compared with thermodynamic simulations. The systems with C3A/C4AF < 1 better preserved the soundness of the Csingle bondSsingle bondH phase, which hosted iron, and prevented thaumasite formation. The addition of calcite in these systems inhibited carbonation. When occurred (mixtures without calcite), the carbonation was significantly more intense at ambient temperature. In the systems that underwent extensive deterioration, cross-linking of silicate structures, AFt decomposition, and iron release from the deteriorating Csingle bondSsingle bondH, occurred, while Al-incorporating amorphous silica, calcium carbonate polymorphs and hydrous iron oxide formed. The presence of unreacted C3A in the systems with C3A/C4AF = 1, suggested that Csingle bondSsingle bondH decomposition was contributed by available sulfates.