Because of the inherent sensitivity of the dropping mercury electrode when used for the quantitative analysis of inorganic ions, the present study was undertaken to determine whether sufficient accuracy and simplicity of operation could be attained to justify its employment as a micromethod for the determination of chloride in blood. Since it was desired to work with such samples as can be conv...

The electric current density imaging technique (CDI) was used to monitor the dissolution of ion releasing tablets (made of various carboxylic acids and of sodium chloride) by following conductivity changes in an agar-agar gel surrounding the tablet. Conductivity changes in the sample were used to calculate spatial and temporal changes of ionic concentrations in the sample. The experimental data...

Rates of chloride ion diffusion in narrow (ca. 3 microm thick), rectangular (ca. 0.1 x 1.0 mm(2)) channels partially filled with polystyrene microspheres are investigated by a potentiometric electrochemical time-of-flight (P-ETOF) method. Lithographically fabricated on glass slides, P-ETOF devices consist of a centrally positioned 10 microm wide, ca. 1 mm long generator microelectrode and two s...

to chloride ingress is one of the most common environmental attacks that lead to the deterioration of concrete structures. Corrosion-related damage to bridge deck overlays, parking garages, marine structures, and manufacturing plants results in millions of dollars spent annually on repairs. This durability problem has received widespread attention in recent years because of its frequent occurre...

the effect of chloride ions concentration on the electrochemical behavior of aisi 410 stainless steel in thesimulated concrete pore (0.1 m naoh + 0.1 m koh) solution was investigated by various electrochemicalmethods such as potentiodynamic polarization, mott–schottky analysis and electrochemical impedancespectroscopy (eis). potentiodynamic polarization curves revealed that increasing chloride ...

Considering the influence of visible load-induced transverse cracks on chloride ion diffusion in cracked concrete in-service reinforced (RC) elements under marine environment, a typical volume with one crack was taken to establish governing equation. Assuming widths at outer lateral and bottom surfaces were equal, model predict equivalent coefficient put forward consider average width, spacing ...

Innovative approaches are under research to study the resistance of chloride ion penetration in concrete containing ions, minimize impact test errors coastal reinforced (RC), which is helpful design RC structures. In this study, diffusion depth, free concentration and coefficient chloride, iodide ions with different curing ages GGBFS content were measured by Rapid Chloride Migration Test (RCM) ...

* Estrada Nacional 13 (km 6), Apartado 1008, 4471-909 Maia, Portugal. † LEPAE—Departamento de Engenharia Química, Faculdade de Engenharia, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal. ** Author to whom correspondence should be addressed: +351 22 508 1695, Fax: +351 22 508 1449, email: [email protected]. An apparatus for determining the permeability of paint films towards chloride ion is descr...