Wyznaczanie współczynnika dyfuzji chlorków w betonie na podstawie pomiarów w polu elektrycznym

• Autorzy: Szweda Z. , Zybura A.

Warianty tytułu

EN

Determination of the diffusivity of chloride ions in concrete based on tests in electric field

• Języki publikacji: PL

Abstrakty

EN

The paper focuses on the thermodynamic model of ion flows in concrete pore solution with taking into consideration the effects caused by an electric field. Especially the equation describing chloride ion migration was derived from the mass balance formulated for the multi-component body. Finally the inverse problem enabling determining diffusivity of chloride ions was formulated on the basis of their mass balance.

Słowa kluczowe

PL

beton; właściwości ochronne betonu; współczynnik dyfuzji chlorków; dyfuzja chlorków; pole elektryczne

EN

concrete; protective properties of concrete; diffusion coefficient; chloride diffusion; electric field

• Wydawca: Komisja Inżynierii Budowlanej Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Roczniki Inżynierii Budowlanej
• Rocznik: 2013
• Tom: z. 13
• Strony: 51--56
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Szweda Z.

• Politechnika Śląska, Gliwice

autor

Zybura A.

• Politechnika Śląska, Gliwice

Bibliografia

• [1] Castellote M., Andrade C., Alonso C., Measurement of the steady and non-steady-state chloride diffusion coefficients in a migration test by means of monitoring the conductivity in the anolyte chamber. Comparison with natural diffusion tests. Cement and Concrete Research, 31, 1411-1420, USA, 2001.
• [2] Andrade C., Castellote M., Alonso C., Gonzales C., Non-steady-state chloride diffusion coefficients obtained from migration and natural diffusion tests. Part 1: Comparison between several methods of calculation. Materials and Structures, 33, 21-28, 2000.
• [3] Zhang T., Gjørv O. E., Effect of ionic interaction in migration testing of chloride diffusivity in concrete. Cement and Concrete Research, 25, 1535-1542, USA, 1995.
• [4] Szweda Z., Zybura A., Analysis of chloride diffusion and migration in concrete. Part I – Theoretical model. Architecture Civil Engineering Environment, The Silesian University of Technology, No.1/2012, s. 47-54.
• [5] Szweda Z., Zybura A.: Theoretical model and experimental tests on chloride diffusion and migration processes in concrete – 11th International Conference "Modern Building Materials, Structures and Techniques" Vilnius Gediminas Technical University. Procedia Engineering. Modern Building Materials, Structures and Techniques. Vol. 57, 2013, p. 1121–1130.