The correlation between air-borne salt and chlorides cumulated on concrete surface in the marine atmosphere zone in North Taiwan
Journal
Journal of Marine Science and Technology
Journal Volume
21
Journal Issue
1
Pages
24-34
Date Issued
2013
Author(s)
Abstract
In this study, the improved Japanese salt sampler was adopted for the air-borne salt sampling tests in coastal areas of northern Taiwan. Thirty-five collection stations were set up in the northern coastal areas to collect air-borne salt data monthly from 2006 to 2009. As the exposure of structures in the natural environment, the chloride on the concrete surface of RC structures would be washed away by the precipitation. Therefore, a two-phase collection method was used to get the total air-borne salt 'Cair' and the adhesive air-borne salt 'Cadh'. The statistic results showed that the percentage of Cadh/Cair has a high correlation with the volume of effective precipitation. Conclusively, the concentration of chloride ion on the concrete surface can be inferred a linear empirical formula according to the regional climatic characters to indicate the total air-borne salt and the adhesive air-borne salt on concrete surface respectively.
Subjects
Air-borne salt; Chloride; Effective precipitation; Reinforcement concrete
SDGs
Other Subjects
Chloride; Collection methods; Concrete surface; Linear empirical formulae; Marine atmosphere; Natural environments; Northern Taiwan; Reinforcement concrete; Chlorine compounds; Coastal zones; Lasers; Concretes
Type
journal article