Chloride migration measurement for chloride and sulfide contaminated concrete

Chloride Resistance of Concrete

Measurement of methylene chloride.

I read with great interest the paper ‘Characteristics of peaks of inhalation exposure to organic solvents’ (Preller et al., 2004). I noticed that the authors used the MiniRAE Plus Professional Photoionization Detector (PID) (RAE Systems USA) to measure the total organic solvents exposure. My company, Shawcity Ltd, has represented RAE Systems in the UK for 10 years, and we are therefore very fam...

Progress of Carbonation in Chloride Contaminated Concretes

Concretes used in marine environment are generally under the cyclic effect of CO2 and chloride ions (Cl -). To date, the influence of carbonation on ingress of chloride ions in concretes has been widely studied; in comparison, study on the influence of Clon the progress of carbonation is limited. During the study, concretes were exposed to independent and combined mechanisms of carbonation and ...

Controlling chloride ions diffusion in concrete

The corrosion of steel in concrete is mainly due to the chemical reaction between the chloride ions and iron ions. Indeed, this is a serious threaten for reinforced concrete structure, especially for the reinforced concrete structure in the sea. So it is urgent and important to protect concrete against chloride ions corrosion. In this work, we report multilayer concrete can cloak chloride ions....

Modeling Chloride Penetration in Saturated Concrete

A mathematical model is established for chloride penetration in saturated concrete. The model takes into account various influential parameters such as water-to-cement ratio, curing time, types of cement, and aggregate content. Two material models are developed for binding capacity and chloride diffusivity, which have a dominant effect on the chloride diffusion process. The chloride binding cap...