Analysis of diffusion and migration coefficient values in prefabricated floor HC-500 slabs

openaccess, Vol. 563 (7) 2019 / wtorek, 23 lipca, 2019

(Open Access)

Z. Szweda

DOI: 10.15199/33.2019.07.05

Volume 563: Issue 7
Pages 34 – 35
Accepted for publication: 30.05.2019 r.

The aim of the work was analysis of the determained diffusion coefficient values and chlorides migration in concrete which was taken directly from prefabricated prestressed HC-500 slabs. Diffusion coefficient and migration values used in the analysis were determined in accordance with the norm and thermodynamic migration model. Said diffusion coefficient and migration coefficient are significantly different. Values of mean square error between values of chloride ions concentration and values determined by the diffusion research were compared. Chloride ions concentrations were determined based on the solution of diffusion equation with the use of diffusion coefficients determined with various methods.
Keywords: diffusion coefficient; chlorides migration; prefabricated prestressed slabs.
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dr inż. Zofia Szweda, Politechnika Śląska; Wydział Budownictwa
ORCID: 0000-0001-5543-7494

dr inż. Zofia Szweda, Politechnika Śląska; Wydział Budownictwa