Analysis of chloride diffusion and migration in concrete. Part I – Theoretical model

• Autorzy: Szweda Z. , Zybura A.
• Języki publikacji: EN

Abstrakty

EN

The first part of this paper focuses on the effect of the electric field on the thermodynamic model of ion flows in the concrete pore solution. The equation for ion migrations was derived from the mass balance in the multi-component system and material constants. Then, using only one component – chloride ion, a reliable diffusion coefficient was determined from the formulated converse task of the migration equation. In the second part of this paper, theoretical results are referred to our own laboratory studies.

PL

W pierwszej części pracy przedstawiono termodynamiczny model przepływu jonów w cieczy porowej betonu pod wpływem sił pola elektrycznego. Na podstawie bilansu masy w układzie wieloskładnikowym oraz związków fizycznych wyprowadzono równanie migracji jonów. Następnie, ograniczając się do jednego składnika – jonu chlorkowego, sformułowano zadanie odwrotne równania migracji, z którego wyznaczono miarodajny współczynnik dyfuzji. W drugiej części pracy wyniki teoretyczne zostaną nawiązane do własnych badań laboratoryjnych.

Słowa kluczowe

EN

chloride diffusion; diffusion coefficient; flow equation; ions migration; converse task

PL

dyfuzja chlorków; współczynnik dyfuzji; równanie przepływu; migracja jonów; zadanie odwrotne

• Wydawca: Silesian University of Technology
• Czasopismo: Architecture Civil Engineering Environment
• Rocznik: 2012
• Tom: Vol. 5, no. 1
• Strony: 47--54
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Szweda Z.

autor

Zybura A.

• Faculty of Civil Engineering, Silesian University of Technology, Akademicka 5, 44-100 Gliwice, Poland,

Bibliografia

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