Szczegóły publikacji
Opis bibliograficzny
Diffusion of chloride ions in the pastes and mortars containing ground granulated blast furnace slag / J. DEJA, G. ŁÓJ // Polish Journal of Chemistry / Polish Academy of Sciences. Committee of Chemistry, Polish Chemical Society ; ISSN 0137-5083 . — Tytuł poprz.: Roczniki Chemii. — 2009 — vol. 83 iss. 8, s. 1471–1479. — Bibliogr. s. 1479
Autorzy (2)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 47911 |
|---|---|
| Data dodania do BaDAP | 2009-10-28 |
| Rok publikacji | 2009 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Polish Journal of Chemistry |
Abstract
The chloride corrosion is one of the seriously harmful processes leading to the destruction of concrete structure. Aparat from the chemical attack on the concrete cover, the chloride ions show their aggressive action on the steel reinforcing elements. The high resistance of slag cementitious materials has been proved in many earlier works. In the presented study the authors give a confrontation of results on the durability of Portland cement, slag cement with 60% granulated blast furnace slag and alkali activated slag cement. The mortars were stored in NaCl, MgCl2 and CaCl2 solutions respectively. Aparat from the strength tests, the phase composition studies using XRD and SEM were carried out. The effective diffusion coefficients of Cl̄ ions, originating from NaCl, MgCl2 or CaCl2, were measured for the Portland cement and slag mortars. The significantly higher corrosion resistance of slag cementitious mortars has been thus proved. It has been also shown that the rate of corrosion process was closely correlated with the type of accompanying cation in chloride solution. The progress of corrosion was the most evident in the presence of Mg2+ ion, the slowest corrosion was observed in the presence of sodium.
