Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A test method for measuring chloride diffusion coefficients through nonsaturated concrete: Part I. The instantaneous plane source diffusion case
A test method is proposed for measuring chloride diffusion coefficients through nonsaturated concrete specimens with controlled water contents. The experimental setup used allows one to supply an initial limited amount of Cl- to the tested concrete surface. The procedure consists of submitting the surface of concrete specimens to interaction with the products of combustion of PVC, which contain mainly gaseous hydrogen chloride. This interaction yields a limited Cl- contamination of the concrete surface. After returning the specimens to their controlled humidity exposure conditions, the kinetics of Cl- transport from the surface inwards may be studied. The experimental Cl- concentration profiles determined at selected time intervals have been adjusted to a diffusion model of "instantaneous plane source," which takes into account the particular initial and boundary conditions of the experimental procedure, for obtaining the corresponding diffusion coefficients.
A test method for measuring chloride diffusion coefficients through nonsaturated concrete: Part I. The instantaneous plane source diffusion case
A test method is proposed for measuring chloride diffusion coefficients through nonsaturated concrete specimens with controlled water contents. The experimental setup used allows one to supply an initial limited amount of Cl- to the tested concrete surface. The procedure consists of submitting the surface of concrete specimens to interaction with the products of combustion of PVC, which contain mainly gaseous hydrogen chloride. This interaction yields a limited Cl- contamination of the concrete surface. After returning the specimens to their controlled humidity exposure conditions, the kinetics of Cl- transport from the surface inwards may be studied. The experimental Cl- concentration profiles determined at selected time intervals have been adjusted to a diffusion model of "instantaneous plane source," which takes into account the particular initial and boundary conditions of the experimental procedure, for obtaining the corresponding diffusion coefficients.
A test method for measuring chloride diffusion coefficients through nonsaturated concrete: Part I. The instantaneous plane source diffusion case
Climent, M.A. (Autor:in) / De Vera, G. (Autor:in) / Lopez, J.F. (Autor:in) / Viqueira, E. (Autor:in) / Andrade, C. (Autor:in)
Cement and Concrete Research ; 32 ; 1113-1123
2002
11 Seiten, 19 Quellen
Aufsatz (Zeitschrift)
Englisch
A test method for measuring chloride diffusion coefficients through nonsaturated concrete
| British Library Online Contents | 2002
Nonlinear water diffusion in nonsaturated concrete
| Springer Verlag | 1972